Home
  • E-mailHalvor.Sommerfelt@uib.no
  • Phone+47 55 58 85 75+47 406 40 882
  • Visitor Address
    Overlege Danielsens hus, Årstadveien 21
    Room 
    515
  • Postal Address
    Postboks 7804
    5020 Bergen
Academic article
  • Kotloff, Karen L.; Nasrin, Dilruba; Blackwelder, William C.; Wu, Yukun; Farag, Tamer H.; Panchalingham, Sandra; Sow, Samba O.; Sur, Dipika; Zaidi, Anita K.M.; Faruque, Abu Syed Golam; Saha, Debasish; Alonso, Pedro L.; Tamboura, Boubou; Sanogo, Doh; Onwuchekwa, Uma; Manna, Byomkesh; Ramamurthy, Thandavarayan; Kanungo, Suman; Ahmed, Shahnawaz; Qureshi, Shahida; Quadri, Farheen; Hossain, Anowar; Das, Sumon K.; Antonio, Martin; Hossain, Mohammad Jahangir; Mandomando, Inacio; Acácio, Sozinho; Biswas, Kousick; Tennant, Sharon M.; Verweij, Jaco J.; Sommerfelt, Halvor; Nataro, James Paul; Robins-Browne, Roy M.; Levine, Myron M. 2019. The incidence, aetiology, and adverse clinical consequences of less severe diarrhoeal episodes among infants and children residing in low-income and middle-income countries: a 12-month case-control study as a follow-on to the Global Enteric Multicenter Study (GEMS). The Lancet Global Health. e568-e584.
  • Zangenberg, Mike; JOHANSEN, ØYSTEIN HAARKLAU; Abdissa, Alemseged; Eshetu, Beza; Kurtzhals, Jørgen Anders; Friis, Henrik; Sommerfelt, Halvor; Langeland, Nina; Hanevik, Kurt. 2019. Prolonged and persistent diarrhoea is not restricted to children with acute malnutrition: an observational study in Ethiopia. Tropical medicine & international health. 1088-1097.
  • Diaz, Yuleima; Govasli Larsen, Morten Andreas; Zegeye, Ephrem Debebe; Sommerfelt, Halvor; Steinsland, Hans; Puntervoll, Pål. 2019. Immunizations with enterotoxigenic Escherichia coli heat-stable toxin conjugates engender toxin-neutralizing antibodies in mice that also cross-react with guanylin and uroguanylin. Infection and Immunity. 1-12.
  • Sakkestad, Sunniva Todnem; Steinsland, Hans; Skrede, Steinar; Kleppa, Elisabeth; Lillebø, Kristine; Sævik, Marianne; Søyland, Hanne; Heien, Astrid Rykkje; Tellevik, Marit Gjerde; Barry, Eileen M.; Sommerfelt, Halvor; Hanevik, Kurt. 2019. Experimental infection of human volunteers with the heat-stable enterotoxin-producing enterotoxigenic Escherichia coli strain TW11681. Pathogens. 1-14.
  • Malembaka, Espoir Bwenge; Tumwine, James K; Ndeezi, Grace; Engebretsen, Ingunn Marie S.; Tylleskär, Thorkild; Wamani, Henry; Sommerfelt, Halvor; Nankabirwa, Victoria. 2019. Effects of complementary feeding on attained height among lower primary school-aged children in Eastern Uganda: A nested prospective cohort study. PLOS ONE. 1-17.
  • Vidal, Roberto M.; Muhsen, Khitam; Tennant, Sharon M.; Svennerholm, Ann-Mari; Sow, Samba O.; Sur, Dipika; Zaidi, Anita K.M.; Faruque, Abu Syed Golam; Saha, Debasish; Adegbola, Richard; Hossain, Mohammad Jahangir; Alonso, Pedro L.; Breiman, Robert F.; Bassat, Quique; Tamboura, Boubou; Sanogo, Doh; Onwuchekwa, Uma; Manna, Byomkesh; Ramamurthy, Thandavarayan; Kanungo, Suman; Ahmed, Shahnawaz; Qureshi, Shahida; Quadri, Farheen; Hossain, Anowar; Das, Sumon K.; Antonio, Martin; Mandomando, Inacio; Nhampossa, Tacilta; Acácio, Sozinho; Omore, Richard; Ochieng, John B.; Oundo, Joseph O.; Mintz, Eric D.; O'Reilly, Ciare E.; Berkeley, Lynette Y.; Livio, Sofie; Panchalingam, Sandra; Nasrin, Dilruba; Farag, Tamer H.; Wu, Yukun; Sommerfelt, Halvor; Robins-Browne, Roy M.; Del Canto, Felipe; Hazen, Tracy H.; Rasko, David A.; Kotloff, Karen L.; Nataro, James Paul; Levine, Myron M. 2019. Colonization factors among enterotoxigenic Escherichia coli isolates from children with moderate-to-severe diarrhea and from matched controls in the Global Enteric Multicenter Study (GEMS). PLoS Neglected Tropical Diseases. 1-27.
  • Sakkestad, Sunniva Todnem; Steinsland, Hans; Skrede, Steinar; Lillebø, Kristine; Skutlaberg, Dag Harald; Guttormsen, Anne Berit; Zavialov, Anton; Paavilainen, Sari; Søyland, Hanne; Sævik, Marianne; Rykkje Heien, Astrid; Gjerde Tellevik, Marit; Barry, Eileen; Langeland, Nina; Sommerfelt, Halvor; Hanevik, Kurt. 2019. A New Human Challenge Model for Testing Heat-Stable Toxin-Based Vaccine Candidates for Enterotoxigenic Escherichia Coli Diarrhea - Dose Optimization, Clinical Outcomes, and CD4+ T Cell Responses. PLoS Neglected Tropical Diseases. 19 pages.
  • Vedøy, Oda Barth; Hanevik, Kurt; Sakkestad, Sunniva Todnem; Sommerfelt, Halvor; Steinsland, Hans. 2018. Proliferation of enterotoxigenic Escherichia coli strain TW11681 in stools of experimentally infected human volunteers. Gut Pathogens. 8 pages.
  • Mazumder, Sarmila; Upadhyay, Ravi Prakash; Hill, Zelee; Taneja, Sunita; Dube, Brinda; Kaur, Jasmine; Shekhar, Medha; Ghosh, Runa; Bisht, Shruti; Martines, Jose Carlos; Bahl, Rajiv; Sommerfelt, Halvor; Bhandari, Nita. 2018. Kangaroo mother care: Using formative research to design an acceptable community intervention. BMC Public Health.
  • Mukunya, David; Haaland, Marte Emilie Sandvik; Tumwine, James K.; Ndeezi, Grace; Namugga, Olive; Tumuhamye, Josephine; Sommerfelt, Halvor; Rujumba, Joseph; Tylleskär, Thorkild; Moland, Karen Marie; Nankabirwa, Victoria. 2018. "We shall count it as a part of kyogero": acceptability and considerations for scale up of single dose chlorhexidine for umbilical cord care in Central Uganda. BMC Pregnancy and Childbirth.
  • Wadhwa, Nitya; Basnet, Sudha; Natchu, Uma Chandra Mouli; Shrestha, Laxman P.; Bhatnagar, Shinjini; Sommerfelt, Halvor; Strand, Tor A; Ramji, Siddarth; Aggarwal, Kailash Chander; Chellani, Harish; Govil, Anuradha; Jajoo, Mamta; Mathur, N.B.; Bhatt, Meenakshi; Mohta, Anup; Ansari, Imran; Basnet, Srijana; Chapagain, Ram H.; Shah, Ganesh P.; Shrestha, Binod M. 2017. Zinc as an adjunct treatment for reducing case fatality due to clinical severe infection in young infants: study protocol for a randomized controlled trial. BMC Pharmacology & Toxicology. 1-10.
  • Jull, Janet E.G.; Whitehead, Margaret; Petticrew, Mark; Kristjansson, Elizabeth; Gough, David; Petkovic, Jennifer; Volmink, Jimmy; Weijer, Charles; Taljaard, Monica; Edwards, Sarah Jane L.; Mbuagbaw, Lawrence; Cookson, Richard; McGowan, Jessie L.; Lyddiatt, Anne; Boyer, Yvonne; Cuervo, Luis Gabriel; Armstrong, Rebecca; White, Howard; Yoganathan, Manosila; Pantoja, Tomás; Shea, Beverley J.; Pottie, Kevin; Norheim, Ole Frithjof; Baird, Sarah; Robberstad, Bjarne; Sommerfelt, Halvor; Asada, Yukiko; Wells, George A.; Tugwell, Peter; Welch, Vivian. 2017. When is a randomised controlled trial health equity relevant? Development and validation of a conceptual framework. BMJ Open. 9 pages.
  • Singh, Prashant; Arora, Ananya; Strand, Tor A; Sommerfelt, Halvor; Lodha, Rakesh; Kabra, Sushil Kumar; Aneja, Satinder; Natchu, Uma Chandra Mouli; Chandra, Jagdish; Rath, Bimbadhar; Sharma, Kumar; Kumari, Meena; Saini, Savita; Bhatnagar, Shinjini; Wadhwa, Nitya. 2017. Predictors of death in infants with probable serious bacterial infection. Pediatric Research. 784-790.
  • Mazumder, Sarmila; Taneja, Sunita; Dalpath, Suresh Kumar; Gupta, Rakesh; Dube, Brinda; Sinha, Bireshwar; Bhatia, Kiran; Yoshida, Sachiyo; Norheim, Ole Frithjof; Bahl, Rajiv; Sommerfelt, Halvor; Bhandari, Nita; Martines, Jose Carlos. 2017. Impact of community-initiated Kangaroo Mother Care on survival of low birth weight infants: Study protocol for a randomized controlled trial. Trials. 1-10.
  • Nankabirwa, Victoria; Tylleskär, Thorkild; Tumuhamye, Josephine; Tumwine, James K; Ndeezi, Grace; Martines, Jose Carlos; Sommerfelt, Halvor. 2017. Efficacy of umbilical cord cleansing with a single application of 4% chlorhexidine for the prevention of newborn infections in Uganda: Study protocol for a randomized controlled trial. Trials. 1-9.
  • Nankabirwa, Victoria; Tumwine, James K; Namugga, Olive; Tylleskär, Thorkild; Ndeezi, Grace; Robberstad, Bjarne; Netea, Mihai G.; Sommerfelt, Halvor. 2017. Early versus late BCG vaccination in HIV-1-exposed infants in Uganda: Study protocol for a randomized controlled trial. Trials. 1-17.
  • Welch, Vivian A; Norheim, Ole Frithjof; Jull, Janet E.G.; Cookson, Richard; Sommerfelt, Halvor; Tugwell, Peter. 2017. CONSORT-Equity 2017 extension and elaboration for better reporting of health equity in randomised trials. BMJ Global Health. 14 pages.
  • Taxt, Arne Michael; Diaz, Yuleima; Aasland, Rein; Clements, John D.; Nataro, James Paul; Sommerfelt, Halvor; Puntervoll, Pål. 2016. Towards rational design of a toxoid vaccine against the heatstable toxin of Escherichia coli. Infection and Immunity. 1239-1249.
  • Sow, Samba O.; Muhsen, Khitam; Nasrin, Dilruba; Blackwelder, William C.; Wu, Yukun; Farag, Tamer H.; Panchalingam, Sandra; Sur, Dipika; Zaidi, Anita K.M.; Faruque, Abu Syed Golam; Saha, Debasish; Adegbola, Richard A.; Alonso, Pedro L.; Breiman, Robert F.; Bassat, Quique; Tamboura, Boubou; Sanogo, Doh; Onwuchekwa, Uma; Manna, Byomkesh; Ramamurthy, Thandavarayan; Kanungo, Suman; Ahmed, Shahnawaz; Qureshi, Shahida; Quadri, Farheen; Hossain, Anowar; Das, Sumon K.; Antonio, Martin; Hossain, Mohammad Jahangir; Mandomando, Inacio; Nhampossa, Tacilta; Acácio, Sozinho; Omore, Richard; Oundo, Joseph O.; Ochieng, John B.; Mintz, Eric D.; O'Reilly, Ciare E.; Berkeley, Lynette Y.; Livio, Sofie; Tennant, Sharon M.; Sommerfelt, Halvor; Nataro, James Paul; Ziv-Baran, Tomer; Robins-Browne, Roy M.; Mishcherkin, Vladimir; Zhang, Jixian; Liu, Jie; Houpt, Eric R.; Kotloff, Karen L.; Levine, Myron M. 2016. The Burden of Cryptosporidium Diarrheal Disease among Children < 24 Months of Age in Moderate/High Mortality Regions of Sub-Saharan Africa and South Asia, Utilizing Data from the Global Enteric Multicenter Study (GEMS). PLoS Neglected Tropical Diseases.
  • Aase, Audun; Sommerfelt, Halvor; Petersen, Lizette Balle; Bolstad, Merete; Cox, Rebecca Jane; Langeland, Nina; Guttormsen, Anne Berit; Steinsland, Hans; Skrede, Steinar; Brandtzæg, Per. 2016. Salivary IgA from the sublingual compartment as a novel noninvasive proxy for intestinal immune induction. Mucosal Immunology. 884-893.
  • Chandyo, Ram Krishna; Ulak, Manjeswori; Sommerfelt, Halvor; Schneede, Jørn; Ueland, Per Magne; Strand, Tor A. 2016. Nutritional intake and status of cobalamin and folate among non-pregnant women of reproductive age in Bhaktapur, Nepal. Nutrients.
  • Nagot, Nicolas; Kankasa, Chipepo; Tumwine, James K; Meda, Nicolas; Hofmeyr, G. Justus; Vallo, Roselyne; Mwiya, Mwiya; Kwagala, Mary; Traore, Hugues; Sunday, Amwe; Singata, Mandisa; Siuluta, Chafye; Some, Eric; Rutagwera, David; Néboua, Désiré; Ndeezi, Grace; Jackson, Debra; Maréchal, Valérie; Neveu, Dorine; Engebretsen, Ingunn Marie S.; Lombard, Carl; Blanche, Stéphane; Sommerfelt, Halvor; Rekacewicz, Claire; Tylleskär, Thorkild; Van de Perre, Philippe. 2016. Extended pre-exposure prophylaxis with lopinavir-ritonavir versus lamivudine to prevent HIV-1 transmission through breastfeeding up to 50 weeks in infants in Africa (ANRS 12174): a randomised controlled trial. The Lancet. 566-573.
  • Fadnes, Lars T.; Nankabirwa, Victoria; Engebretsen, Ingunn Marie S.; Sommerfelt, Halvor; Birungi, Nancy; Lombard, Carl; Swanevelder, Sonja; Van den Broeck, Jan; Tylleskär, Thorkild; Tumwine, James K. 2016. Effects of an exclusive breastfeeding intervention for six months on growth patterns of 4-5 year old children in Uganda: The cluster-randomised PROMISE EBF trial. BMC Public Health. 9 pages.
  • Chandyo, Ram Krishna; Ulak, Manjeswori; Adhikari, Ramesh K.; Sommerfelt, Halvor; Strand, Tor. 2015. Prevalence of iron deficiency and anemia among young children with acute diarrhea in Bhaktapur, Nepal. Healthcare. 593-606.
  • Singh, Prashant; Wadhwa, Nitya; Lodha, Rakesh; Sommerfelt, Halvor; Aneja, Satinder; Natchu, Uma Chandra Mouli; Chandra, Jagdish; Rath, Bimbadhar; Sharma, Vinod Kumar; Kumari, Mohini; Saini, Saviti; Kabra, Sushil Kumar; Bhatnagar, Shinjini; Strand, Tor A. 2015. Predictors of time to recovery in infants with probable serious bacterial infection. PLOS ONE. 11 pages.
  • Basnet, Sudha; Sharma, Arun; Mathisen, Maria; Shrestha, Prakash Sunder; Ghimire, Ram Kumar; Shrestha, Dhiraj Man; Valentiner-Branth, Palle; Sommerfelt, Halvor; Strand, Tor. 2015. Predictors of duration and treatment failure of severe pneumonia in hospitalized young nepalese children. PLOS ONE. 11 pages.
  • Lindsay, Brianna; Oundo, Joseph O.; Hossain, Mohammad Anowar; Antonio, Martin; Tamboura, Boubou; Walker, Alan W.; Paulson, Joseph N.; Parkhill, Julian; Omore, Richard; Faruque, Abu Syed Golam; Das, Suman Kumar; Ikumapayi, Usman Nurudeen; Adeyemi, Mitchell; Sanogo, Doh; Saha, Debasish; Sow, Samba O.; Farag, Tamer H.; Nasrin, Dilruba; Li, Shan; Panchalingam, Sandra; Levine, Myron M.; Kotloff, Karen; Magder, Laurence S.; Hungerford, Laura L.; Sommerfelt, Halvor; Pop, Mihai; Nataro, James Paul; Stine, Oscar Colin. 2015. Microbiota that affect risk for shigellosis in children in low-income countries. Emerging Infectious Diseases. 242-250.
  • Chola, Lumbwe; Fadnes, Lars T.; Engebretsen, Ingunn Marie S.; Nkonki, Lungiswa; Nankabirwa, Victoria; Sommerfelt, Halvor; Tumwine, James K; Tylleskär, Thorkild; Robberstad, Bjarne. 2015. Cost-effectiveness of peer counselling for the promotion of exclusive breastfeeding in Uganda. PLOS ONE. 18 pages.
  • Nankabirwa, Victoria; Tumwine, James K; Mugaba, Proscovia M.; Tylleskär, Thorkild; Sommerfelt, Halvor; Van De Perre, Philippe; Engebretsen, Ingunn Ms; Fadnes, Lars Thore; Fjeld, Eli; Fylkesnes, Knut; Klungsøyr, Jørn; Nordrehaug-Åstrøm, Anne; Olsen, Øystein Evjen; Robberstad, Bjarne; Ekström, Eva-Charlotte; Meda, Nicolas; Diallo, Hama; Ouedrago, Thomas; Rouamba, Jeremi; Traore, Bernadette Traore Germain; Zabsonre, Emmanuel; Tumwine, James K; Bwengye, Caleb; Karamagi, Charles; Nankunda, Jolly; Ndeezi, Grace; Wandera, Margaret; Kankasa, Chipepo; Katepa-Bwalya, Mary; Siuluta, Chafye; Siziya, Seter; Jackson, Debra; Chopra, Mickey; Colvin, Mark; Doherty, Tanya; Goga, Ameena; Matizirofa, Lyness; Nkonki, Lungiswa; Sanders, David; Zembe, Wanga. 2015. Child survival and BCG vaccination: A community based prospective cohort study in Uganda. BMC Public Health. 10 pages.
  • Engebretsen, Ingunn Marie S.; Jackson, Debra; Fadnes, Lars T.; Nankabirwa, Victoria; Diallo, Abdoulaye Hama; Doherty, Tanya; Lombard, Carl; Swanevelder, Sonja; Nankunda, Jolly Kaharuza; Ramokolo, Vundli; Sanders, David; Wamani, Henry; Meda, Nicolas; Tumwine, James K.; Ekström, Eva-Charlotte M; Van de Perre, Philippe; Kankasa, Chipepo; Sommerfelt, Halvor; Tylleskär, Thorkild. 2014. Growth effects of exclusive breastfeeding promotion by peer counsellors in sub-Saharan Africa: the cluster-randomised PROMISE EBF trial. BMC Public Health. 12 pages.
  • Skrede, Steinar; Steinsland, Hans; Sommerfelt, Halvor; Aase, Audun; Brandtzæg, Per; Langeland, Nina; Cox, Rebecca Jane; Sævik, Marianne; Wallevik, Marita; Skutlaberg, Dag Harald; Tellevik, Marit Gjerde; Sack, David A.; Nataro, James Paul; Guttormsen, Anne Berit. 2014. Experimental infection of healthy volunteers with enterotoxigenic Escherichia coli wild-type strain TW10598 in a hospital ward. BMC Infectious Diseases. 9 pages.
  • Rongsen-Chandola, Temsunaro; Strand, Tor; Goyal, Nidhi; Flem, Elmira; Singh Rathore, Sudeep; Arya, Alok; Winje, Brita Askeland; Lazarus, Robin; Shanmugasundaram, Elango; Babji, Sudhir; Sommerfelt, Halvor; Vainio, M Kirsti; Kang, Gagandeep; Bhandari, Nita. 2014. Effect of withholding breastfeeding on the immune response to a live oral rotavirus vaccine in North Indian infants. Vaccine. A134-A139.
  • Mazumder, Sarmila; Taneja, Sunita; Bahl, Rajiv; Mohan, Pavitra; Strand, Tor; Sommerfelt, Halvor; Kirkwood, Betty; Goyal, Nidhi; Van Den Hombergh, Henri; Martines, Jose Carlos; Bhandari, Nita. 2014. Effect of implementation of Integrated Management of Neonatal and Childhood Illness programme on treatment seeking practices for morbidities in infants: cluster randomised trial. BMJ. British Medical Journal.
  • Engebretsen, Ingunn Marie S.; Nankabirwa, Victoria; Doherty, Tanya; Diallo, Hama; Nankunda, Jolly Kaharuza; Fadnes, Lars T.; Ekström, Eva-Charlotte; Ramokolo, Vundli; Meda, Nicolas; Sommerfelt, Halvor; Jackson, Debra; Tylleskär, Thorkild; Tumwine, James K. 2014. Early infant feeding practices in three African countries: the PROMISE-EBF trial promoting exclusive breastfeeding by peer counsellors. International Breastfeeding Journal. 19.
  • Ulak, Manjeswori; Chandyo, Ram Krishna; Adhikari, Ramesh K.; Sharma, Pushpa R.; Sommerfelt, Halvor; Refsum, Helga; Strand, Tor. 2014. Cobalamin and folate status in 6 to 35 months old children presenting with acute diarrhea in Bhaktapur, Nepal. PLOS ONE.
  • Taxt, Arne Michael; Diaz, Yuleima; Bacle, Amélie; Grauffel, Cédric; Reuter, Nathalie; Aasland, Rein; Sommerfelt, Halvor; Puntervoll, Pål. 2014. Characterization of immunological cross-reactivity between enterotoxigenic Escherichia coli heat-stable toxin and human guanylin and uroguanylin. Infection and Immunity. 2913-2922.
  • Lindsay, Brianna; Ochieng, John B.; Ikumapayi, Usman N.; Toure, Aliou; Ahmed, Dilruba; Li, Shan; Panchalingam, Sandra; Levine, Myron; Kotloff, Karen; Rasko, David A.; Morris, Carolyn R.; Juma, Jane; Fields, Barry S.; Dione, Michel; Malle, Dramane; Becker, Stephen M.; Houpt, Eric R.; Nataro, James Paul; Sommerfelt, Halvor; Pop, Mihai; Oundo, Joe; Antonio, Martin; Hossain, Anowar; Tamboura, Boubou; Stine, O. Colin. 2013. Quantitative PCR for Detection of Shigella Improves Ascertainment of Shigella Burden in Children with Moderate-to-Severe Diarrhea in Low-Income Countries. Journal of Clinical Microbiology. 1740-1746.
  • Strand, Tor A; Taneja, Sunita; Ueland, Per Magne; Refsum, Helga; Bahl, Rajiv; Schneede, Jørn; Sommerfelt, Halvor; Bhandari, Nita. 2013. Cobalamin and folate status predicts mental development scores in North Indian children 12-18 mo of age. American Journal of Clinical Nutrition. 310-317.
  • Kotloff, Karen L.; Nataro, James Paul; Blackwelder, William C.; Nasrin, Dilruba; Farag, Tamer H.; Panchalingam, Sandra; Wu, Yukun; Sow, Samba O.; Sur, Dipika; Breiman, Robert F.; Faruque, Abu Syed Golam; Zaidi, Anita K.M.; Saha, Debasish; Alonso, Pedro L.; Tamboura, Boubou; Sanogo, Doh; Onwuchekwa, Uma; Manna, Byomkesh; Ramamurthy, Thandavarayan; Kanungo, Suman; Ochieng, John B.; Omore, Richard; Oundo, Joseph O.; Hossain, Anowar; Das, Sumon K.; Ahmed, Shahnawaz; Qureshi, Shahida; Quadri, Farheen; Adegbola, Richard A.; Antonio, Martin; Hossain, Mohammad Jahangir; Akinsola, Adebayo; Mandomando, Inacio; Nhampossa, Tacilta; Acácio, Sozinho; Biswas, Kousick; O'Reilly, Ciare E.; Mintz, Eric D.; Berkeley, Lynette Y.; Muhsen, Khitam; Sommerfelt, Halvor; Robins-Browne, Roy M.; Levine, Myron M. 2013. Burden and aetiology of diarrhoeal disease in infants and young children in developing countries (the Global Enteric Multicenter Study, GEMS): a prospective, case-control study. The Lancet. 209-222.
  • Bhatnagar, Shinjini; Wadhwa, Nitya; Aneja, Satinder; Lodha, Rakesh; Kabra, Sushil Kabra; Natchu, Uma Chandra Mouli; Sommerfelt, Halvor; Dutta, Ashok Kumar; Chandra, Jagdish; Rath, Bimbadhar; Sharma, Mamta; Sharma, Vinod Kumar; Kumari, Mohini; Strand, Tor Arne. 2012. Zinc as adjunct treatment in infants aged between 7 and 120 days with probable serious bacterial infection: a randomised, double-blind, placebo-controlled trial. The Lancet. 2072-2078.
  • Diallo, Abdoulaye Hama; Meda, Nicolas; Sommerfelt, Halvor; Traore, Germain S ; Cousens, Simon ; Tylleskar, Thorkild. 2012. The high burden of infant deaths in rural Burkina Faso: a prospective community-based cohort study. BMC Public Health. 15 pages.
  • Kotloff, Karen L.; Blackwelder, William C.; Nasrin, Dilruba; Nataro, James Paul; Farag, Tamer H.; van Eijk, Annemieke; Adegbola, Richard A.; Alonso, Pedro L.; Breiman, Robert F.; Faruque, Abu Syed Golam; Saha, Debasish; Sow, Samba O.; Sur, Dipika; Zaidi, Anita K.M.; Biswas, Kousick; Panchalingam, Sandra; Clemens, John D.; Cohen, Dani; Glass, Roger I; Mintz, Eric D.; Sommerfelt, Halvor; Levine, Myron M. 2012. The global enteric multicenter study (GEMS) of diarrheal disease in infants and young children in developing countries: epidemiologic and clinical methods of the case/control study. Clinical Infectious Diseases. S232-S245.
  • Blackwelder, William C.; Biswas, Kousick; Wu, Yukun; Kotloff, Karen L.; Farag, Tamer H.; Nasrin, Dilruba; Graubard, Barry I.; Sommerfelt, Halvor; Levine, Myron M. 2012. Statistical methods in the Global Enteric Multicenter Study (GEMS). Clinical Infectious Diseases. S246-S253.
  • Strand, Tor A; Sharma, Pushpa R; Gjessing, Håkon K.; Ulak, Manjeswori; Chandyo, Ram Krishna; Adhikari, Ramesh K; Sommerfelt, Halvor. 2012. Risk factors for extended duration of acute diarrhea in young children. PLOS ONE.
  • Nagot, Nicolas; Kankasa, Chipepo; Meda, Nicolas; Hofmeyr, Justus; Nikodem, Cheryl; Tumwine, James K.; Karamagi, Charles Amnon S.; Sommerfelt, Halvor; Neveu, Dorine; Tylleskar, Thorkild; Van de Perre, Philippe. 2012. Lopinavir/Ritonavir versus Lamivudine peri-exposure prophylaxis to prevent HIV-1 transmission by breastfeeding: the PROMISE-PEP trial Protocol ANRS 12174. BMC Infectious Diseases. 11 pages.
  • Bhandari, Nita; Mazumder, Sarmila; Taneja, Sunita; Sommerfelt, Halvor; Strand, Tor A. 2012. Effect of implementation of Integrated Management of Neonatal and Childhood Illness (IMNCI) programme on neonatal and infant mortality: cluster randomised controlled trial. BMJ. British Medical Journal. 13 pages.
  • Sommerfelt, Halvor; Steinsland, Hans; van der Merwe, Lize; Blackwelder, William C.; Nasrin, Dilruba; Faraq, Tamer H.; Kotloff, Karen L.; Levine, Myron M.; Gjessing, Håkon K. 2012. Case/Control studies with follow-up: constructing the source population to estimate effects of risk factors on development, disease, and survival. Clinical Infectious Diseases. s262-s270.
  • Basnet, Sudha; Shrestha, Prakash S.; Sharma, Arun; Mathisen, Maria; Prasai, Renu; Bhandari, Nita; Adhikari, Ramesh K.; Sommerfelt, Halvor; Valentiner-Branth, Palle; Strand, Tor A. 2012. A randomized controlled trial of zinc as adjuvant therapy for severe pneumonia in young children. Pediatrics. 701-708.
  • Fadnes, Lars T.; Jackson, Debra; Engebretsen, Ingunn Marie S.; Zembe, Wanga; Sanders, David; Sommerfelt, Halvor; Tylleskar, Thorkild. 2011. Vaccination coverage and timeliness in three South African areas: a prospective study. BMC Public Health. 11 pages.
  • Mathisen, Maria; Basnet, Sudha; Sharma, Arun; Shrestha, Prakash S; Sharma, Biswa Nath; Valentiner-Branth, Palle; Sommerfelt, Halvor; Strand, Tor A. 2011. RNA viruses in young Nepalese children hospitalized with severe pneumonia. The Pediatric Infectious Disease Journal. 1032-1036.
  • Manger, Mari Skar; Taneja, Sunita; Strand, Tor A; Ueland, Per Magne; Refsum, Helga; Schneede, Jørn; Nygård, Ottar; Sommerfelt, Halvor; Bhandari, Nita. 2011. Poor folate status predicts persistent diarrhea in 6- to 30-month-old north Indian children. Journal of Nutrition. 2226-2232.
  • Nankabirwa, Victoria; Tumwine, James K; Tylleskar, Thorkild; Nankunda, Jolly Kaharuza; Sommerfelt, Halvor. 2011. Perinatal mortality in Eastern Uganda: A community based prospective cohort study. PLOS ONE. 7 pages.
  • Wadhwa, Natya; Natchu, Uma Chandra Mouli; Sommerfelt, Halvor; Strand, Tor A; Kapoor, V ishal; Saini, Savita; Kainth, Udaypal S.; Bhatnagar, Shinjini. 2011. ORS containing zinc does not reduce duration or stool volume of acute diarrhea in hospitalized children. Journal of Pediatric Gastroenterology and Nutrition - JPGN. 161-167.
  • Nankabirwa, Victoria; Tylleskar, Thorkild; Nankunda, Jolly Kaharuza; Engebretsen, Ingunn Marie S.; Sommerfelt, Halvor; Tumwine, James K. 2011. Malaria Parasitaemia among Infants and Its Association with Breastfeeding Peer Counselling and Vitamin A Supplementation: A Secondary Analysis of a Cluster Randomized Trial. PLOS ONE. 8 pages.
  • Fadnes, Lars T.; Nankabirwa, Victoria; Sommerfelt, Halvor; Tylleskar, Thorkild; Tumwine, James K; Engebretsen, Ingunn Marie S. 2011. Is vaccination coverage a good indicator of age-appropriate vaccination? A prospective study from Uganda. Vaccine. 3564-3570.
  • Tylleskar, Thorkild; Jackson, Debra; Meda, Nicolas; Engebretsen, Ingunn Marie S.; Chopra, Mickey; Diallo, Abdoulaye Hama; Doherty, Tanja; Ekström, Eva-Charlotte M; Fadnes, Lars T.; Goga, Ameena; Kankasa, Chipepo; Klungsøyr, Jørn Ivar; Lombard, Carl; Nankabirwa, Victoria; Nankunda, Jolly Kaharuza; Van de Perre, Philippe; Sanders, David; Shanmugam, Rebecca; Sommerfelt, Halvor; Wamani, Henry; Tumwine, James K. 2011. Exclusive breastfeeding promotion by peer counsellors in sub-Saharan Africa (PROMISE-EBF): a cluster-randomised trial. The Lancet. 420-427.
  • Del Canto, Felipe; Valenzuela, Patricio; Cantero, Lidia; Bronstein, Jonathan; Blanco, Jesus E; Blanco, Jorge; Prado, Valeria; Levine, Myron; Nataro, James Paul; Sommerfelt, Halvor; Vidal, Roberto. 2011. Distribution of Classical and Nonclassical Virulence Genes in Enterotoxigenic Escherichia coli Isolates from Chilean Children and tRNA Gene Screening for Putative Insertion Sites for Genomic Islands. Journal of Clinical Microbiology. 3198-3203.
  • Manger, Mari Skar; Strand, Tor A; Taneja, Sunita; Refsum, Helga; Ueland, Per Magne; Nygård, Ottar; Schneede, Jørn; Sommerfelt, Halvor; Bhandari, Nita. 2011. Cobalamin Status Modifies the Effect of Zinc Supplementation on the Incidence of Prolonged Diarrhea in 6-to 30-Month-Old North Indian Children. Journal of Nutrition. 1108-1113.
  • Sahl, Jason W.; Steinsland, Hans; Redman, Julia C.; Angiuoli, Samuel V.; Nataro, James Paul; Sommerfelt, Halvor; Rasko, David A. 2011. A Comparative genomic analysis of diverse clonal types of enterotoxigenic escherichia coli reveals pathovar-specific conservation. Infection and Immunity. 950-960.
  • Taneja, Sunita; Strand, Tor A; Sommerfelt, Halvor; Bahl, Rajiv; Bhandari, Nita. 2010. Zinc supplementation for four months does not affect growth in young north Indian children. Journal of Nutrition. 630-634.
  • Chandyo, Ram K; Shrestha, Prakash S; Valentiner-Branth, Palle; Mathisen, Maria; Basnet, Sudha; Ulak, Manjeswori; Adhikari, Ramesh K; Sommerfelt, Halvor; Strand, Tor Arne. 2010. Two weeks of zinc administration to Nepalese children with pneumonia does not reduce the incidence of pneumonia or diarrhea during the next six months. Journal of Nutrition. 1677-1682.
  • Mathisen, Maria; Strand, Tor Arne; Valentiner-Branth, Palle; Chandyo, Ram Krishna; Basnet, Sudha; Sharma, Biswa N; Adhikari, Ramesh K; Hvidsten, Dag; Shrestha, Prakash S; Sommerfelt, Halvor. 2010. Respiratory viruses in Nepalese children with and without pneumonia: a case-control study. The Pediatric Infectious Disease Journal. 731-735.
  • Mapaseka, Seheri Luyanda ; Dewar, John Barr; van der Merwe, Lize; Geyer, Annelise; Tumbo, John; Zweygarth, Monika; Bos, Pieter; Esona, Mathew Dioh ; Steele, A Duncan; Sommerfelt, Halvor. 2010. Prospective hospital-based surveillance to estimate rotavirus disease burden in the Gauteng and North West Province of South Africa during 2003-2005. Journal of Infectious Diseases. S131-S138.
  • Diallo, Abdoulaye Hama; Meda, Nicolas; Zabsonre, Emmanuel; Sommerfelt, Halvor; Cousens, Simon; Tylleskar, Thorkild. 2010. Perinatal mortality in rural Burkina Faso: a prospective community-based cohort study. BMC Pregnancy and Childbirth. 9 pages.
  • Nankabirwa, Victoria; Tylleskar, Thorkild; Tumwine, James K.; Sommerfelt, Halvor. 2010. Maternal education is associated with vaccination status of infants less than 6 months in Eastern Uganda: a cohort study. BMC Pediatrics.
  • Mathisen, Maria; Strand, Tor Arne; Sharma, Biswa N; Chandyo, Ram K; Valentiner-Branth, Palle; Basnet, Sudha; Adhakari, Ramesh K; Hvidsten, Dag; Shrestha, Prakash S; Sommerfelt, Halvor. 2010. Clinical presentation and severity of viral community-acquired pneumonia in young Nepalese children. The Pediatric Infectious Disease Journal. e1-e6.
  • Steinsland, Hans; Lacher, David W; Sommerfelt, Halvor; Whittam, Thomas S. 2010. Ancestral Lineages of Human Enterotoxigenic Escherichia coli. Journal of Clinical Microbiology. 2916-2924.
  • Valentiner-Branth, Palle; Shrestha, Prakash S; Chandyo, Ram K; Mathisen, Maria; Basnet, Sudha; Bhandari, Nita; Adhikari, Ramesh K; Sommerfelt, Halvor; Strand, Tor Arne. 2010. A randomized controlled trial of the effect of zinc as adjuvant therapy in children 2-35 mo of age with severe or nonsevere pneumonia in Bhaktapur, Nepal. American Journal of Clinical Nutrition. 1667-1674.
  • Chandyo, RK; Strand, Tor Arne; Mathisen, M; Ulak, M; Adhikari, RK; Bolann, BJ; Sommerfelt, Halvor. 2009. Zinc deficiency is common among healthy women of reproductive age in Bhaktapur, Nepal. Journal of Nutrition. 594-597.
  • Mathisen, Maria; Strand, Tor A; Sharma, Biswa N; Chandyo, Ram K; Valentiner-Branth, Palle; Basnet, Sudha; Adhikari, Ramesh K; Hvidsten, Dag ; Shrestha, Prakash S; Sommerfelt, Halvor. 2009. RNA viruses in community-acquired childhood pneumonia in semi-urban Nepal; a cross-sectional study. BMC Medicine. 12 pages.
  • Checkley, W; Buckley, G; Gilman, RH; Assis, AM; Guerrant, RL; Morris, SS; Mølbak, Kåre; Valentiner-Branth, Palle; Lanata, CF; Black, RE; Barreto, ML; Santos, LM; Moore, SR; Lima, AA; Pinkerton, RC; Aaby, Peter; Cabrera, LZ; Bern, C; Sterling, CR; Epstein, LD; Arthur, P; Gyapong, J; Kirkwood, BR; Ross, DA; Brown, KH; Becker, S.; Moulton, L; Cousens, SN; Perch, Michael; Fischer, Thea Kølsen; Sommerfelt, Halvor; Steinsland, Hans; Verastegui, H. 2008. Multi-country analysis of the effects of diarrhoea on childhood stunting. International Journal of Epidemiology. 816-830.
  • Chandyo, Ram Krishna; Strand, Tor A; Ulvik, Rune Johan; Adhikari, Ramesh K; Ulak, Manju S; Dixit, Hemang; Sommerfelt, Halvor. 2007. Prevalence of iron deficiency and anemia among healthy women of reproductive age in Bhaktapur, Nepal. European Journal of Clinical Nutrition. 262-269.
  • Strand, Tor A; Taneja, Sunita; Bhandari, Nita; Refsum, Helga; Ueland, Per Magne; Gjessing, Håkon K.; Bahl, Rajiv; Schneede, Joern; Bhan, Maharaj K; Sommerfelt, Halvor. 2007. Folate, but not vitamin B-12 status, predicts respiratory morbidity in north Indian children. American Journal of Clinical Nutrition. 139-144.
  • Valentiner-Branth, Palle; Perch, Michael; Nielsen, Jens; Steinsland, Hans; Garly, May-Lill; Fischer, Thea Kølsen; Sommerfelt, Halvor; Mølbak, Kåre; Aaby, Peter. 2007. Community cohort study of Cryptosporidium parvum infections: sex-differential incidences associated with BCG and diptheria-tetanus-pertussis vaccinations. Vaccine. 2733-2741.
  • TaneJa, S; Bhandari, Nita; Strand, Tor A; Sonnnerfelt, H; Refsum, Helga; Ueland, Per Magne; Schneede, Jørn; Bahl, Rajiv; Bhan, Maharaj Kishan. 2007. Cobalamin and folate status in infants and young children in a low-to-middle income community in India. American Journal of Clinical Nutrition. 1302-1309.
  • Kvåle, Gunnar; Sommerfelt, Halvor; Fylkesnes, Knut. 2005. Intervention studies for improving global health and health care: an important arena for epidemiologists. Norsk Epidemiologi. 123-126.
  • Steinsland, Hans; Valentiner-Branth, Palle; Gjessing, Håkon K; Aaby, Peter; Mølbak, Kåre; Sommerfelt, Halvor. 2004. Protection from natural infections with enterotoxigenic Escherichia coli: longitudinal study. Ugeskrift for læger. 4051-4053.
  • Strand, Tor A; Adhikari, Ramesh K; Chandyo, Ram K; Sharma, Pushpa R; Sommerfelt, Halvor. 2004. Predictors of plasma zinc concentrations in children with acute diarrhea. American Journal of Clinical Nutrition. 451-456.
  • Valvatne, Håvard; Steinsland, Hans; Grewal, Harleen; Mølbak, Kåre; Vuust, Jens; Sommerfelt, Halvor. 2004. Identification and molecular characterization of the gene encoding coli surface antigen 20 of enterotoxigenic Escherichia coli. FEMS Microbiology Letters. 131-138.
  • Robberstad, Bjarne; Strand, Tor A; Black, Robert E; Sommerfelt, Halvor. 2004. Cost-effectiveness of zinc as adjunct therapy for acute childhood diarrhoea in developing countries. Bulletin of the World Health Organization. 523-531.
  • Steinsland, Hans; Valentiner-Branth, Palle; Aaby, Peter; Mølbak, Kåre; Sommerfelt, Halvor. 2004. Clonal relatedness of enterotoxigenic Escherichia coli strains isolated from a cohort of young children in Guinea-Bissau. Journal of Clinical Microbiology. 3100-3107.
  • Benn, CS; Bale, C; Sommerfelt, Halvor; Friis, Henrik; Aaby, Peter. 2003. Vitamin A supplementation and childhood mortality: amplification of the non-specific effects of vaccines? International Journal of Epidemiology. 822-828.
  • Strand, Tor A; Aaberge, IS; Maage, Amund; Ulvestad, Elling; Sommerfelt, Halvor. 2003. The immune response to pneumococcal polysaccharide vaccine in zinc depleted mice. Scandinavian Journal of Immunology. 76-80.
  • Steinsland, Hans; Valentiner-Branth, Palle; Gjessing, Håkon K; Aaby, Peter; Mølbak, Kåre; Sommerfelt, Halvor. 2003. Protection from natural infections with enterotoxigenic Escherichia coli: longitudinal study. The Lancet. 286-291.
  • Steinsland, Hans; Valentiner-Branth, Palle; Gjessing, Håkon K; Aaby, Peter; Mølbak, Kåre; Sommerfelt, Halvor. 2003. Protection from natural infections with enterotoxigenic Escherichia coli: longitudinal study. The Lancet. 286-291.
  • Karlsen, Tom Hemming; Sommerfelt, Halvor; Klomstad, Skjalg; Andersen, Per Kragh; Strand, Tor A; Ulvik, Rune Johan; Åhrén, Christina; Grewal, Harleen M. S. 2003. Intestinal and systemic immune responses to an oral B-subunit-whole-cell cholera vaccine administered during zinc supplementation. Infection and Immunity. 3909-3913.
  • Strand, Tor A; Hollingshead, SK; Julshamn, K; Briles, DE; Blomberg, Bjørn; Sommerfelt, Halvor. 2003. Effects of zinc deficiency and pneumococcal surface protein A immunization on zinc status and the risk of severe infection in mice. Infection and Immunity. 2009-2013.
  • Strand, Tor A; Hollingshead, SK; Julshamn, Kåre; Briles, David E; Blomberg, Bjørn; Sommerfelt, Halvor. 2003. Effects of zinc deficiency and pneumococcal surface protein A immunization on zinc status and the risk of severe infection in mice. Infection and Immunity. 2009-2013.
  • Steinsland, Hans; Valentiner-Branth, Palle; Grewal, Harleen M. S.; Gaastra, Wim; Mølbak, Kåre; Sommerfelt, Halvor. 2003. Development and evaluation of genotypic assays for the detection and characterization of enterotoxigenic Escherichia coli. Diagnostic microbiology and infectious disease. 97-105.
  • Valentiner-Branth, Palle; Steinsland, Hans; Fischer, Thea Kølsen; Perch, Michael; Scheutz, Flemming; Dias, Fransisco; Aaby, Peter; Mølbak, Kåre; Sommerfelt, Halvor. 2003. Cohort study of Guinean children: incidence, pathogenicity, conferred protection and attributable risk for enteropathogens during the first 2 years of life. Journal of Clinical Microbiology. 4245 pages.
  • Valentiner-Branth, Palle; Steinsland, Hans; Fischer, Thea Kølsen; Perch, M; Scheutz, F; Dias, F; Aaby, Peter; Mølbak, Kåre; Sommerfelt, Halvor. 2003. Cohort study of Guinean children: incidence, pathogenicity, conferred protection and attributable risk for enteropathogens during the first 2 years of life. Journal of Clinical Microbiology. 4238-4245.
  • Fischer, Thea Kølsen; Page, NA; Griffin, D; Eugen-Olsen, J; Pedersen, AG; Valentiner-Branth, Palle; Mølbak, Kåre; Sommerfelt, Halvor; Munk Nielsen, N. 2003. Characterization of nontypeable rotavirus strains from Guinea-Bissau: Identification of G8 and G9 types and a high frequency of mixed infections. Virology. 125-133.
  • Bhandari, Nita; Bahl, Rajiv; Taneja, S.; Strand, Tor A; Mølbak, Kåre; Ulvik, Rune Johan; Sommerfelt, Halvor; Bhan, Maharaj Kishan. 2002. Substantial Reduction in Severe Diarrheal Morbidity by Daily Zinc Supplementation in Young North Indian Children. Pediatrics. 86.
  • Fischer, Thea Kølsen; Valentiner-Branth, Palle; Steinsland, Hans; Perch, Michael; Santos, Gina; Aaby, P; Mølbak, Kåre; Sommerfelt, Halvor. 2002. Protective immunity after natural rotavirus infection. A community cohort study of newborn children in Guinea-Bisau, West Africa. Journal of Infectious Diseases. 593-597.
  • Steinsland, Hans; Valentiner-Branth, Palle; Perch, Michael; Dias, Francisco; Fischer, Thea Kølsen; Aaby, Peter; Mølbak, Kåre; Sommerfelt, Halvor. 2002. Enterotoxigenic Escherichia coli infections and diarrhea in a cohort of young children in Guinea-Bissau. Journal of Infectious Diseases. 1740-1747.
  • Bahl, Rajiv; Bhandari, Nita; Saksena, M.; Strand, Tor A; Kumar, G.T.; Bhan, Maharaj Kishan; Sommerfelt, Halvor. 2002. Efficacy of Zinc-fortified oral rehydration solution in 6- to 35-month-old children with acute diarrhea. Journal of Pediatrics. 677-682.
  • Strand, Tor A; Chandyo, RK; Bahl, Rajiv; Sharma, PR; Adhikari, RK; Bhandari, Nita; Ulvik, Rune Johan; Mølbak, Kåre; Bhan, Maharaj Kishan; Sommerfelt, Halvor. 2002. Effectiveness and efficacy of zinc for the treatment of acute diarrhea in young children. Pediatrics. 898-903.
  • Bhandari, Nita; Bahl, Rajiv; Taneja, S.; Strand, Tor A; Mølbak, Kåre; Ulvik, Rune Johan; Sommerfelt, Halvor; Bhan, Maharaj Kishan. 2002. Effect of routine zinc supplementation on pneumonia in children aged 6 months to 3 years: randomised controlled trial in an urban slum. BMJ. British Medical Journal. 1358-1362.
  • Valvatne, Håvard; Steinsland, Hans; Sommerfelt, Halvor. 2002. Clonal clustering and colonization factors among thermolabile and porcine thermostable enterotoxin-producing Escherichia coli. Acta Pathologica, Microbiologica et Immunologica Scandinavica (APMIS). 665-672.
  • Gaastra, W.; Sommerfelt, Halvor; van Dijk, L; Kusters, JG; Svennerholm, AM; Grewal, Harleen M. S. 2002. Antigenic variation within the subunit protein of members of the colonization factor antigen I group of fimbrial proteins in human enterotoxigenic Escherichia coli. International Journal of Medical Microbiology. 43-50.
  • Strand, Tor A; Briles, DE; Gjessing, HK; Maage, Amund; Bhan, Maharaj Kishan; Sommerfelt, Halvor. 2001. Pneumococcal pulmonary infection, septicemia and survival in young zinc-depleted mice. British Journal of Nutrition. 301-306.
  • Bhan, Maharaj Kishan; Sommerfelt, Halvor; Strand, Tor A. 2001. Micronutrient deficiency in children. Commentary. British Journal of Nutrition. 199-203.
  • Grewal, Harleen M. S.; Sommerfelt, Halvor. 2001. Genotypic simultaneous detection of enterotoxigenic Escherichia coli harbouring genes for colonisation factor antigen I, coli surface antigens 1, 2, 4, 17, or putative colonisation factor O166. Acta Pathologica, Microbiologica et Immunologica Scandinavica (APMIS). 447-453.
  • Valentiner-Branth, Palle; Steinsland, Hans; Santos, Gina; Perch, Michael; Bergtrup, Kamilla; Bhan, Maharaj Kishan; Dias, Fransisco; Aaby, Peter; Sommerfelt, Halvor; Mølbak, Kåre. 2001. Community-based controlled trial of dietary management of children with persistent diarrhea: sustained beneficial effect on ponderal and linear growth. American Journal of Clinical Nutrition. 968-974.
  • Grewal, Harleen M. S.; Vetvik, H; Karlsen, Hemming T; Ahren, C; Gjessing, HK; Sommerfelt, Halvor; Haneberg, B. 2000. The measurement of specific IgA in fecal extracts and in intestinal lavage fluid for the monitoring of mucosal immune responses. JIM - Journal of Immunological Methods. 53-62.
  • Grewal, Harleen M. S.; Karlsen, Tom Hemming; Vetvik, H; Ahren, C; Gjessing, Håkon K; Sommerfelt, Halvor; Haneberg, B. 2000. Measurement of specific IgA in faecal extracts and intestinal lavage fluid for monitoring of mucosal immune responses. JIM - Journal of Immunological Methods. 53-62.
  • Fischer, Thea Kølsen; Steinsland, Hans; Mølbak, Kåre; Ca, Rui; Gentsch, Jon R.; Valentiner-Branth, Palle; Aaby, Peter; Sommerfelt, Halvor. 2000. Genotype Profiles of Rotavirus Strains from Children in a Suburban Community in Guinea-Bissau, Western Africa. Journal of Clinical Microbiology. 264-267.
  • Valentiner-Brandt, Palle; Steinsland, Hans; Gjessing, Håkon K; Santos, Gina; Bhan, Maharaj; Aaby, Peter; Sommerfelt, Halvor; Mølbak, Kåre. 1999. Community-based randomized controlled trial of reduced osmolarity oral rehydration solution in acute childhood diarrhea. Pediatr Infect Dis J. 789-795.
  • Halvorsen, T.; Valvatne, Håvard; Grewal, Harleen; Gaastra, W.; Sommerfelt, Halvor. 1997. Expression of colonization factor antigen I fimbriae by enterotoxigenic Escherichia coli; influence by growth conditions and a recombinant positive regulatory gene. Acta Pathologica, Microbiologica et Immunologica Scandinavica (APMIS). 247-254.
  • Halvorsen, T.; Valvatne, Håvard; Grewal, Harleen; Gaastra, W.; Sommerfelt, Halvor. 1997. Expression of colonization factor antigen I by enterotoxigenic <I>Escherichia coli</I>; influence of growth conditions and a recombinant positive regulatory gene. Acta Pathologica, Microbiologica et Immunologica Scandinavica (APMIS). 247-254.
  • Grewal, Harleen; Valvatne, Håvard; Bhan, M. K.; van Dijk, Linda; Gaastra, W.; Sommerfelt, Halvor. 1997. A new putative colonization factor, CS19, of human enterotoxigenic Escherichia coli. Infection and Immunity. 507-513.
  • Grewal, Harleen; Valvatne, Håvard; Bhan, M. K.; van Dijk, L; Gaastra, W.; Sommerfelt, Halvor. 1997. A new fimbrial putative colonization factor, CS19 in human enterotoxigenic <I>Escherichia coli</I>. Infection and Immunity. 507-13.
  • Valvatne, Håvard; Sommerfelt, Halvor; Gaastra, W; Bahn, MK; Grewal, H.M.S. 1996. Identification and characterization of a new putative colonization fac tor of enterotoxigenic Escherichia coli. Infection and Immunity. 2635-2642.
  • Sommerfelt, Halvor; Steinsland, Hans; Grewal, H.M.S.; Viboud, G.; Bhandari, N.; Gaastra, W.; Svennerholm, A-M.; Bhan, M.K. 1996. Colonization factors of enterotoxigenic Esherichia coli isolated from children in North India. Journal of Infectious Diseases. 768-776.
  • Sommerfelt, Halvor; Steinsland, Hans; Grewal, H.M.S.; Viboud, G.; Bhandari, N.; Gaastra, W.; Svennerholm, A-M.; Bhan, M.K. 1996. Colonization factors of enterotoxigenic Echerichia coli isolated from children in North India. Journal of Infectious Diseases. 768-776.
  • Grewal, Harleen; Hellander, A; Svennerholm, A-M.; Bhan, MK; Gaastra, W; Sommerfelt, Halvor. 1994. Genotypic and phenotypic identification of coli surface antigen 6-positive enterotoxigenic Escherichia coli. Journal of Clinical Microbiology. 1295-1301.
  • Grewal, Harleen; Gaastra, W.; Svennerholm, A-M.; Røli, J.; Sommerfelt, Halvor. 1993. Induction of Colonization Factor Antigen I and Coli Surface Antigen 4 of enterotoxigenic Escherichia coli. Vaccine. 221-226.
  • Sommerfelt, Halvor; Bhan, M. K.; Srivastava, R.; Bhatnagar, S. 1993. Evaluation of DNA-DNA hybridization for the direct detection of enterotoxigenic Escherichia coli in stool blots. Scandinavian Journal of Infectious Diseases. 457-463.
  • Bhatnagar, S.; Bhan, M. K.; Sommerfelt, Halvor; Kumar, R.; Sazawal, S.; Saini, S. 1993. Enteroaggregative Escherichia coli, a possible new pathogen causing acute and persistent diarrhea. Scandinavian Journal of Infectious Diseases. 579-583.
  • Sommerfelt, Halvor; Grewal, Harleen; Gaastra, W.; Svennerholm, A-M.; Bhan, M. K. 1992. Use of nonradioactive DNA Hybridization for the identification of enterotoxigenic Escherichia coli harboring genes for colonization factor antigen/1, coli surface antigen 4 and putative colonization factor 0166. Journal of Clinical Microbiology. 1823-1828.
  • Sommerfelt, Halvor; Grewal, Harleen; Svennerholm, A-M.; Gaastra, W.; Flood, P.; Viboud, G.; Bhan, M. K. 1992. Genetic relationship of putative colonization factor 0166 to colonization factor antigen I and coli surface antigen 4 of enterotoxigenic Escherichia coli. Infection and Immunity. 3799-3806.
  • Sommerfelt, Halvor; Grewal, Harleen; Svennerholm, A-M.; Gaastra, W.; Bhan, M. K. 1992. Colonization factor antigen I, coli surface antigen 4 and putative colonization factor 0166 of enterotoxigenic Escherichia coli are genetically related. Vaccine. 289-289.
  • Sommerfelt, Halvor; Grewal, Harleen; Gaastra, W.; Bhan, M. K.; Svennerholm, A-M.; Kalland, Karl-Henning; Asphaug, V.; Aasland, Rein; Bjorvatn, B. 1991. Presence of cfaD-homologous sequences and expression of coli surface antigen 4 on enterotoxigenic Escherichia coli; relevance for diagnostic procedures. Microbial Pathogenesis. 297-304.
  • Sommerfelt, Halvor. 1991. Nucleic acid hybridization for the identification of enterotoxigenic Escherichia coli. Reviews in Medical Microbiology. 138-146.
  • Sommerfelt, Halvor; Haukanes, Bjørn Ivar; Kalland, Karl-Henning; Svennerholm, Ann-Mari; Sanchez, Joaquin; Bjorvatn, Bjarne. 1989. Mechanism of spontaneous loss of heat-stable toxin (STa) Production in enterotoxigenic Escherichia coli. Acta Pathologica, Microbiologica et Immunologica Scandinavica (APMIS). 436-440.
  • Sommerfelt, Halvor; Svennerholm, Ann-Mari; Kalland, Karl-Henning; Haukanes, Bjørn Ivar; Bjorvatn, Bjarne. 1988. Comparative Study of Colony Hybridization With Synthetic Oligonucleotide Probes and Enzyme-Linked Immunosorbent Assay for Identification of Enterotoxigenic Escherichia Coli. Journal of Clinical Microbiology. 530-534.
Lecture
  • Zegeye, Ephrem Debebe; Baleux, Françoice; Barman, Anaxee; Coic, Yves-Marie; Diaz, Yuleima; Govasli, Morten L; Mishra, Vishwas; Clements, John D.; Mulard, Laurence; Visweswariah, Sandhya S.; Sommerfelt, Halvor; Puntervoll, Pål. 2018. Towards a heat-stable toxin-based subunit vaccine against enterotoxigenic E. coli.
Popular scientific lecture
  • Sommerfelt, Halvor. 1997. Molecular epidemiological studies of childhood diarrhea in India and Guinea Bissau - relevance for vaccine development.
Academic lecture
  • Sakkestad, Sunniva Todnem; Steinsland, Hans; Skrede, Steinar; Kleppa, Elisabeth; Sævik, Marianne; Søyland, Hanne; Rykkje Heien, Astrid; Tellevik, Marit Gjerde; Barry, Eileen; Sommerfelt, Halvor; Hanevik, Kurt. 2018. Human experimental infection with ST-only enterotoxigenic Escherichia coli wild-type strain TW11681.
  • Sakkestad, Sunniva Todnem; Steinsland, Hans; Skrede, Steinar; Lillebø, Kristine; Skutlaberg, Dag Harald; Guttormsen, Anne Berit; Søyland, Hanne; Sævik, Marianne; Rykkje Heien, Astrid; Tellevik, Marit Gjerde; Barry, Eileen; Langeland, Nina; Sommerfelt, Halvor; Hanevik, Kurt. 2018. ETEC strain TW10722 may be suitable for use in vaccine challenge studies for testing heat-stable toxoid based vaccine candidates.
  • Sakkestad, Sunniva Todnem; Lillebø, Kristine; Steinsland, Hans; Skrede, Steinar; Guttormsen, Anne Berit; Søyland, Hanne; Sævik, Marianne; Rykkje Heien, Astrid; Sørnes, Steinar; Tellevik, Marit Gjerde; Langeland, Nina; Barry, Eileen; Sommerfelt, Halvor; Hanevik, Kurt. 2017. Developing a controlled human infection model for testing heat-stable toxoid-based vaccine candidates for enterotoxigenic Escherichia coli diarrhea.
  • Puntervoll, Pål; Diaz, Yuleima; Taxt, Arne Michael; Zegeye, Ephrem Debebe; Govasli Larsen, Morten Andreas; Nataro, James Paul; Clements, John D.; Sommerfelt, Halvor. 2016. Towards rational design of a toxoid vaccine against the heat-stable toxin-producing Escherichia coli.
  • Tylleskar, Thorkild; Chopra, Mickey; Diallo, Abdoulaye Hama; Doherty, Tanya M; Ekström, Eva-Charlotte M; Engebretsen, Ingunn Marie S.; Goga, A.; Jackson, Debra; Kankasa, Chipepo; Klungsøyr, Jørn Ivar; Lombard, Carl; Meda, Nicolas; Nankabirwa, Victoria; Nankunda, Jolly Kaharuza; Sanders, David; Shanmugam, Rebecca; Sommerfelt, Halvor; Tumwine, James K.; Van de Perre, Philippe; Wamani, Henry. 2010. Exclusive breastfeeding promotion by peer-counsellors in Sub-Saharan Africa: Results from the multi-centre cluster-randomised behaviour intervention trial PROMISE EBF.
  • Tylleskär, Thorkild; Chopra, Mickey; Diallo, Hama; Doherty, Tanya M; Ekström, Eva-Charlotte M; Engebretsen, Ingunn Marie S.; Goga, Ameena; Kankasa, Chipepo; Klungsøyr, Jørn Ivar; Lombard, Carl; Meda, Nicolas; Nankabirwa, Victoria; Nankunda, Jolly Kaharuza; Shanmugam, Rebecca; Sommerfelt, Halvor; Tumwine, James K.; Van de Perre, Philippe; Wamani, Henry. 2009. Preliminary results from the multi-centre cluster-randomised behaviour intervention trial PROMISE EBF: breastfeeding promotion in Sub-Saharan Africa.
  • Strand, Tor A; Taneja, Sunita; Bhandari, Nita; Bahl, Rajiv; Refsum, Helga; Gjessing, Håkon K; Ueland, Per Magne; Schneede, Jørn; Bhan, Maharaj K; Sommerfelt, Halvor. 2005. Folate, but not cobalamin status predicts respiratory morbidity in north Indian children.
  • Sommerfelt, Halvor; Taneja, Sunita; Strand, Tor A; Refsum, Helga; Bhandari, Nita; Bahl, Rajiv; Ueland, Per Magne; Schneede, Jørn; Bhan, Maharaj K. 2005. Effect of daily zinc supplementation for 4 months on plasma concentrations of folate, cobalamin, and other markers of B-vitamin status: A randomized placebo-controlled trial in young north Indian children.
  • Lindemark, Frode; Strand, Tor A; Sommerfelt, Halvor; Chandyo, Ram Krishna ; Valvatne, Håvard; Myron, Levine; Grewal, Harleen. 2004. Levels of antibodies against enterotoxigenic Escherichia coli and Vibrio cholerae in young childrenin Bhanktapur, Nepal.
  • Chandyo, Ram K; Strand, Tor A; Ulvik, Rune J; Adhikari, Ramesh K; Sharma, Pushpa R; Sommerfelt, Halvor. 2004. Effect of zinc on childhood diarrhea. Results from the Bhaktapur study.
  • Chandyo, Ram K; Strand, Tor A; Ulak, Manju S; Adhikari, Ramesh K; Sommerfelt, Halvor. 2004. Cobalamin and folate status among adolescent girls in Bhaktapur, Nepal.
  • Sommerfelt, Halvor. 2004. . Zinc as a modulator of immunological responses to a CTB-WC cholera vaccine.
  • Karlsen, Tom Hemming; Sommerfelt, Halvor; Klomstad, Skjalg; Andersen, Per Kragh; Strand, Tor A; Ulvik, Rune Johan; Aahren, Christina; Grewal, Harleen M. S. 2003. Oral zinc supplementation modulates the immune response to an oral B-subunit-whole-cell cholera vaccine.
  • Valentiner-Branth, Palle; Steinsland, Hans; Fischer, Thea; Perch, Michael; Scheutz, F; Dias, Francisco; Aaby, Peter; Mølbak, Kåre; Sommerfelt, Halvor. 2003. Incidence, Pathogenicity and Attributable risk of enteropathogens in a birth cohort study in Guinea-Bissau.
  • Strand, Tor A; Chandyo, RK; Bahl, Rajiv; Sharma, PR; Adhikari, RK; Bhandari, Nita; Ulvik, Rune Johan; Mølbak, Kåre; Bhan, Maharaj Kishan; Sommerfelt, Halvor. 2002. Zinc administration in Nepalese children with acute diarrhea, who will benefit most?
  • Karlsen, Tom Hemming; Grewal, Harleen M. S.; Klomstad, Skjalg; Andersen, PK; Strand, Tor A; Ulvik, Rune Johan; Aahren, Christina; Sommerfelt, Halvor. 2001. Mucosal and systemic immune responses to the oral CTB-whole cell cholera vaccine (rBS-WC) administered during zinc supplementation to zinc-replete adults.
  • Karlsen, Tom Hemming; Grewal, Harleen M. S.; Klomstad, Skjalg; Andersen, PK; Strand, Tor A; Ulvik, Rune Johan; Aahren, Christina; Sommerfelt, Halvor. 2001. Mucosal and systemic immune responses to the oral CTB-whole cell cholera vaccine (rBS-WC) administered during zinc supplementation to zinc-replete adults.
  • Karlsen, Tom Hemming; Grewal, Harleen M. S.; Klomstad, Skjalg; Andersen, PK; Strand, Tor A; Ulvik, Rune Johan; Aahren, Christina; Sommerfelt, Halvor. 2001. Mucosal and systemic immune responses to the oral CTB-whole cell cholera vaccine (rBS-WC) administered during zinc supplementation to zinc-replete adults.
  • Strand, Tor A; Briles, D.E.; Gjessing, H.; Blomberg, Bjørn; Måge, A.; Bhan, Maharaj; Sommerfelt, Halvor. 1998. Pulmonary pneumococcal infection and septicemia in zinc deficient mice.
  • Grewal, Harleen; Karlsen, TH; Vetvik, H; Åhren, C; Haneberg, B; Sommerfelt, Halvor. 1998. Measurement of specific IgA in fecal extracts and in intestinal lavage fluid for monitoring of mucosal immune responses after rectal and gastric immunization.
  • Grewal, Harleen; Karlsen, T.H.; Vetvik, H.; Åhren, C.; Haneberg, B.; Sommerfelt, Halvor. 1998. Measurement of specific IgA in fecal extracts and in intestinal lavage fluid for monitoring of mucosal immune responses after rectal and gastric immunization.
  • Strand, T.A.; Måge, A; Aaberge, I.S.; Ulvestad, E; Sommerfelt, Halvor. 1998. Growth and Immune Response to Pneumococcal Polysaccharide Vaccine in young Zinc Deficient Mice.
  • Valentiner-Branth, P; Steinsland, Hans; Santos, G.; Perch, M.; Begtrup, K; Bhan, Maharaj; Dias, F.; Aaby, P; Sommerfelt, Halvor; Mølbak, K. 1998. An open controlled community-based study on the effect of dietary treatment and vitamin and mineral supplementation on the short- and long-term nutritional outcome of persistent diarrhoea in a West African Country.
  • Gaastra, W.; Grewal, Harleen; van Dijk, L.; Kusters, J. G.; Svennerholm, A-M.; Sommerfelt, Halvor. 1997. The colonization factor antigen I like group of fimbrial proteins of human enterotoxigenic Escherichia coli.
  • Gaastra, W.; Grewal, Harleen; van Dijk, L.; Kusters, J. G.; Svennerholm, A-M.; Sommerfelt, Halvor. 1997. The colonization factor antigen I like group of fimbrial proteins of human enterotoxigenic <I>Escherichia coli</I>.
  • Valvatne, Håvard; Sommerfelt, Halvor. 1997. Clonal clustering and colonization factors of STaI LT Escherichia coli.
  • Gaastra, W; van Dijk, L; Grewal, H.M.S; Sommerfelt, Halvor; Svennerholm, A-M. 1996. The CFA/I like group of colonization factors of human ETCA.
  • Valvatne, Håvard; Sommerfelt, Halvor; Gaastra, W.; Grewal, H.M.S. 1996. Identification and characterization of CS20, a new putative colonizatio n factor of enterotoxigenic Escherichia coli.
Editorial
  • Kvåle, Gunnar; Sommerfelt, Halvor. 2009. Bistand for bedre helse - Norges rolle. Tidsskrift for Den norske legeforening. 2471.
Reader opinion piece
  • Bhatnagar, Shinjini; Natchu, Uma Chandra Mouli; Wadhwa, Nitya; Lodha, Rakesh; Sommerfelt, Halvor; Strand, Tor A. 2012. Zinc for probable serious bacterial infection in infants reply. The Lancet. 1144-1144.
Masters thesis
  • Lwin, Thandar. 2004. Drug resistant tuberculosis in Yangon, Myanmar.
Feature article
  • Lie, Sverre O.; Gulati, Dipali; Sommerfelt, Halvor; Sundby, Johanne. 2011. Millennium development goals for health--will we reach them by 2015? Tidsskrift for Den norske legeforening. 1904-1907.
  • Kvåle, Gunnar; Sommerfelt, Halvor. 2011. Internasjonal satsing for bedre helse - Norges rolle. Tidsskrift for Den norske legeforening. 1796-1798.
Letter to the editor
  • Lindsay, Brianna R.; Chakraborty, Subhra; Harro, Clayton; Li, Shan; Nataro, James Paul; Sommerfelt, Halvor; Sack, David A.; Stine, Oscar Colin. 2014. Quantitative PCR and culture evaluation for enterotoxigenic Escherichia coli (ETEC) associated diarrhea in volunteers. FEMS Microbiology Letters. 25-31.
Doctoral dissertation
  • Valvatne, Håvard. 2004. Colonisation Factors of Enterotoxigenic Escherichia coli; detection and characterisation.
  • Sommerfelt, Halvor. 1990. DNA-DNA hybridization for identification of enterotoxigenic Escherichia coli.
Abstract
  • Tylleskar, Thorkild; Diallo, Hama; Nankabirwa, Victoria; Meda, Nicolas; Tumwine, James; Sommerfelt, Halvor. 2012. High perinatal mortality in Burkina Faso and Uganda. Acta Obstetricia et Gynecologica Scandinavica. 138-138.
  • Bolstad, Merete; Sommerfelt, Halvor; Brandtzæg, Per; Aase, Audun. 2011. Stability of secretory IgA in saliva. Scandinavian Journal of Immunology. 381-382.
  • Nankabirwa, Victoria; Tylleskar, Thorkild; Nankunda, Jolly Kaharuza; Engebretsen, Ingunn Marie S.; Sommerfelt, Halvor; Tumwine, James K. 2011. Prevalence of malaria parasitaemia among infants in Uganda and its association with breastfeeding, peer counselling and vitamin a supplementation. Tropical medicine & international health. 97-97.
  • Taneja, S.; Strand, Tor A; Sommerfelt, Halvor; Bahl, Rajiv; Bhandari, N. 2009. ZINC SUPPLEMENTATION FOR FOUR MONTHS DOES NOT HAVE A SUBSTANTIAL EFFECT ON GROWTH IN YOUNG NORTH INDIAN CHILDREN. Annals of Nutrition and Metabolism. 689-689.
  • Tylleskär, Thorkild; Chopra, Mickey; Diallo, Hama; Doherty, Tanya M; Ekström, Eva-Charlotte M; Engebretsen, Ingunn Marie S.; Goga, Ameena; Kankasa, Chipepo; Klungsøyr, Jørn Ivar; Lombard, Carl; Meda, Nicolas; Nankabirwa, Victoria; Nankunda, Jolly Kaharuza; Shanmugam, Rebecca; Sommerfelt, Halvor; Tumwine, James K.; Van de Perre, Philippe; Wamani, Henry. 2009. Preliminary results from the multi-centre cluster-randomised behaviour intervention trial PROMISE EBF: breastfeeding promotion in Sub-Saharan Africa. Annals of Nutrition and Metabolism. 99-99.
  • Kvåle, Gunnar; Sommerfelt, Halvor. 2009. Measuring the impact of health interventions in complex settings: need for a common evaluation framework. European Journal of Tropical Medicine and International Health. 6-7.
  • Kvåle, G; Sommerfelt, Halvor. 2009. Measuring the impact of health interventions in complex settings: need for a common evaluation framework. Tropical medicine & international health. S6-S7.
  • Strand, Tor A; Sharma, PR; Chandyo, RK; Refsum, Helga; Ulak, M; Adhikari, RK; Sommerfelt, Halvor. 2009. FOLATE AND VITAMIN B12 STATUS IN YOUNG NEPALESE CHILDREN. Annals of Nutrition and Metabolism. 488-489.
  • Chandyo, Ram Krishna; Shrestha, Prakash S.; Valentiner-Branth, P; Mathisen, Maria; Basnet, Sudha; Ulak, M; Adhikari, RK; Sommerfelt, Halvor; Strand, Tor A. 2009. EFFICACY OF SHORT COURSE ORAL ZINC GIVEN DURING PNEUMONIA ON SUBSEQUENT MORBIDITY AMONG YOUNG CHILDREN IN NEPAL. Annals of Nutrition and Metabolism. 264-264.
  • Manger, Mari Skar; Bhan, Maharaj Kishan; Strand, Tor A; Taneja, Sunita; Bahl, Rajiv; Sommerfelt, Halvor; Refsum, Helga; Ueland, Per Magne; Schneede, Jørn; Bhandari, Nita. 2009. DOES VITAMIN B12 OR FOLATE STATUS MODIFY THE IMPACT OF ZINC SUPPLEMENTATION ON THE INCIDENCE OF DIARRHEA? Annals of Nutrition and Metabolism. 261-262.
  • Mathisen, Maria; Strand, Tor A; Sharma, Biswa N.; Chandyo, Ram Krishna; Valentiner-Branth, Palle; Basnet, Sudha; Adhikari, Ramesh K; Hvidsten, Dag; Shrestha, Prakash S.; Sommerfelt, Halvor. 2008. RNA Viruses Are an Important Cause of Community-acquired Pneumonia in Nepalese Children Living in a Semi-urban District in Kathmandu Valley. International Journal of Infectious Diseases. E56-E56.
Poster
  • Vedøy, Oda Barth; Sakkestad, Sunniva Todnem; Sommerfelt, Halvor; Hanevik, Kurt; Steinsland, Hans. 2018. Quantitation of enterotoxigenic Escherichia coli strain TW11681 in stools of experimentally infected human volunteers.
  • Coic, Yves-Marie; Diaz, Yuleima; Zegeye, Ephrem Debebe; Sommerfelt, Halvor; Puntervoll, Pål; Mulard, Laurence; Baleux, Françoice. 2018. On the challenge of cysteine-rich peptide synthesis: the heat-stable toxin from Enterotoxigenic Escherichia coli (STh) and its toxoids .
  • Mukunya, David; Tylleskär, Thorkild; Sommerfelt, Halvor; Tumuhamye, Josephine; Kagongwe, Samuel; Nankabirwa, Victoria. 2017. Willingness to pay for a single dose 7.1% chlorhexidine digluconate solution for umbilical cord care in central Uganda: a contingency valuation study.
  • Mukunya, David; Haaland, Marte Emilie Sandvik; Tylleskär, Thorkild; Tumwine, James K; Moland, Karen Marie; Sommerfelt, Halvor; Tumuhamye, Josephine; Nankabirwa, Victoria. 2017. We shall count it as a part of kyogero?. Acceptability of single dose 7.1% chlorhexidine di-gluconate solution for umbilical cord care among women in Kampala and Mukono district, central Uganda: A qualitative study.
  • Tumuhamye, Josephine; Tumwine, James K; Bwanga, Freddie; Sommerfelt, Halvor; Mukunya, David; Nankabirwa, Victoria. 2017. Microbial colonization of Ugandan women in labor.
  • Engebretsen, Ingunn Marie S.; Jackson, Debra; Fadnes, Lars Thore; Nankabirwa, Victoria; Diallo, Hama; Doherty, Tanya; Lombard, Carl; Swanevelder, Sonja; Nankunda, Jolly Kaharuza; Ramokolo, Vundli; Sanders, David; Wamani, Henry; Meda, Nicolas; Tumwine, James; Ekström, Eva-Charlotte M; Van de Perre, Philippe; Kankasa, Chipepo; Sommerfelt, Halvor; Tylleskar, Thorkild. 2012. Promotion of exclusive breastfeeding by peer-counsellors in Sub-Saharan Africa: Anthropometric outcomes from the cluster randomised PROMISE EBF TRIAL.
  • Engebretsen, Ingunn Marie S.; Jackson, Debra; Fadnes, Lars Thore; Nankabirwa, Victoria; Diallo, Abdoulaye Hama; Doherty, Tanya; Lombard, Carl; Swanevelder, Sonja; Nankunda, Jolly Kaharuza; Ramokolo, Vundli; Sanders, David; Wamani, Henry; Meda, Nicolas; Tumwine, James K.; Ekström, Eva-Charlotte M; Van de Perre, Philippe; Kankasa, Chipepo; Sommerfelt, Halvor; Tylleskar, Thorkild. 2012. Is promotion of exclusive breastfeeding safe in sub-Saharan Africa with respect to child growth? Results form the cluster-randomised PROMISE EBF-trial.
  • Nankabirwa, Victoria; Tumwine, James K.; Sommerfelt, Halvor; Tylleskar, Thorkild. 2010. Perinatal motrality in Eastern Uganda: a community-based prospective cohort study.
  • Nankabirwa, Victoria; Tylleskar, Thorkild; Sommerfelt, Halvor; Nankunda, Jolly Kaharuza; Tumwine, James K. 2010. Maternal secondary education reduces missed childhood vaccinations by fifty percent: evidence from a community based prospective cohort study.
  • Taneja, Sunita; Strand, Tor A; Sommerfelt, Halvor; Bahl, Rajiv; Bhandari, Nita. 2009. Zinc supplementation for four months does not have a substantial effect on growth in young north indian children.
  • Strand, Tor A; Taneja, Sunita; Bhandari, Nita; Schneede, Jørn; Refsum, Helga; Ueland, Per Magne; Bahl, Rajiv; Sommerfelt, Halvor; Bhan, Maharaj K. 2009. Vitamin B12, but not folate status predicts mental development scores in north indian toddlers.
  • Strand, Tor A; Sharma, Pushpa R; Chandyo, Ram Krishna; Refsum, Helga; Ulak, Manjeswori; Adhikari, Ramesh K; Sommerfelt, Halvor. 2009. Folate and vitamin B12 status in young nepalese children.
  • Lindemark, Frode; Strand, Tor A; Sommerfelt, Halvor; Chandyo, Ram Krishna; Valvatne, Håvard; Myron, Levine; Grewal, Harleen M. S. 2004. Levels of antibodies against enterotoxigenic Escherichia coli and Vibrio cholerae in young childrenin Bhanktapur, Nepal.
  • Lindemark, Frode; Strand, Tor A; Sommerfelt, Halvor; Chandyo, Ramesh; Valvatne, Håvard; Levine, Myron; Grewal, Harleen M. S. 2003. Levels of antibodies against enterotoxigenic Escherichia coli and Vibrio cholerae in young children in Bhaktapur, Nepal.
  • Fischer, Thea Kølsen; Valentiner-Branth, Palle; Steinsland, Hans; Perch, Michael; Santos, Gina; Aaby, Peter; Mølbak, Kåre; Sommerfelt, Halvor. 2002. Protective immunity conferred by natural rotavirus infection.
  • Fischer, Thea Kølsen; Steinsland, Hans; Valentiner-Branth, Palle; Mølbak, Kåre; Perch, Michael; Santos, Gina; Aaby, P; Gentsch, J; Sommerfelt, Halvor. 2002. Community-based surveillance of rotavirus infections in Guinea-Bissau.
Academic literature review
  • Zegeye, Ephrem Debebe; Govasli Larsen, Morten Andreas; Sommerfelt, Halvor; Puntervoll, Pål. 2018. Development of an enterotoxigenic Escherichia coli vaccine based on the heat-stable toxin. 1379-1388.
  • Verani, Jennifer R.; Baqui, Abdullah H.; Broome, Claire V.; Cherian, Thomas; Cohen, Cheryl; Farrar, Jennifer L.; Feikin, Daniel R.; Groome, Michelle J.; Hajjeh, Rana A.; Johnson, Hope L.; Madhi, Shabir A.; Mulholland, Kim; O'Brien, Katherine L.; Parashar, Umesh D.; Patel, Manish M.; Rodrigues, Laura C.; Santosham, Mathuram; Scott, J. Anthony; Smith, Peter G.; Sommerfelt, Halvor; Tate, Jacqueline E.; Victor, J. Chris; Whitney, Cynthia G.; Zaidi, Anita K.; Zell, Elizabeth R. 2017. Case-control vaccine effectiveness studies: Preparation, design, and enrollment of cases and controls. 3295-3302.
  • Verani, Jennifer R.; Baqui, Abdullah H.; Broome, Claire V.; Cherian, Thomas; Cohen, Cheryl; Farrar, Jennifer L.; Feikin, Daniel R.; Groome, Michelle J.; Hajjeh, Rana A.; Johnson, Hope L.; Madhi, Shabir A.; Mulholland, Kim; O'Brien, Katherine L.; Parashar, Umesh D.; Patel, Manish M.; Rodrigues, Laura C.; Santosham, Mathuram; Scott, J. Anthony; Smith, Peter G.; Sommerfelt, Halvor; Tate, Jacqueline E.; Victor, J. Chris; Whitney, Cynthia G.; Zaidi, Anita K.; Zell, Elizabeth R. 2017. Case-control vaccine effectiveness studies: Data collection, analysis and reporting results. 3303-3308.
  • Fleckenstein, James M; Hardwidge, Philip R; Munson, George P; Rasko, David A; Sommerfelt, Halvor; Steinsland, Hans. 2010. Molecular mechanisms of enterotoxigenic Escherichia coli infection. 89-98.
  • Taxt, Arne Michael; Aasland, Rein; Sommerfelt, Halvor; Nataro, James; Puntervoll, Pål. 2010. Heat-stable enterotoxin of enterotoxigenic escherichia coli as a vaccine target. 1824-1831.

More information in national current research information system (CRIStin)

Fields of competence