- E-posthalvor.sommerfelt@uib.no
- Telefon+47 55 58 85 75+47 406 40 882
- BesøksadresseOverlege Danielssens hus, 5. etasje, Årstadveien 21Rom515
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Vitenskapelig artikkel
- (2024). Seroepidemiology of SARS-CoV-2 in a cohort of pregnant women and their infants in Uganda and Malawi. PLOS ONE.
- (2023). Strong Association between Diarrhea and Concentration of Enterotoxigenic Escherichia coli Strain TW10722 in Stools of Experimentally Infected Volunteers. Pathogens. 13 sider.
- (2022). Umbilical cord stump infections in central Uganda: Incidence, bacteriological profile, and risk factors. International Journal of Environmental Research and Public Health (IJERPH). 12 sider.
- (2022). Effect of kangaroo mother care initiated in community settings on financial risk protection of low-income households: a randomised controlled trial in Haryana, India. BMJ Global Health. 1-9.
- (2022). Effect of community-initiated kangaroo mother care on breastfeeding performance in low birthweight infants: A randomized clinical trial. Maternal & Child Nutrition. 9 sider.
- (2022). Early child stimulation, linear growth and neurodevelopment in low birth weight infants. BMC Pediatrics. 9 sider.
- (2022). A comparison of risk factors for cryptosporidiosis and non-cryptosporidiosis diarrhoea: A case-case-control study in Ethiopian children. PLoS Neglected Tropical Diseases. 20 sider.
- (2021). Vaginal colonization with antimicrobial-resistant bacteria among women in labor in central Uganda: prevalence and associated factors. Antimicrobial Resistance and Infection Control. 11 sider.
- (2021). Pathogens Associated With Linear Growth Faltering in Children With Diarrhea and Impact of Antibiotic Treatment: The Global Enteric Multicenter Study. Journal of Infectious Diseases. S848-S855.
- (2021). Health equity impact of community-initiated kangaroo mother care: a randomized controlled trial. International Journal for Equity in Health. 8 sider.
- (2021). Global research priorities on COVID-19 for maternal, newborn, child and adolescent health. Journal of Global Health. 12 sider.
- (2021). Effect of Community-Initiated Kangaroo Mother Care on Postpartum Depressive Symptoms and Stress among Mothers of Low-Birth-Weight Infants: A Randomized Clinical Trial. JAMA Network Open. 1-12.
- (2021). Effect of Community-Initiated Kangaroo Mother Care on Fecal Biomarkers of Gut Function in Low Birth Weight Infants in North India: A Randomized Clinical Trial. American Journal of Tropical Medicine and Hygiene. 945-952.
- (2020). Vaginal colonisation of women in labour with potentially pathogenic bacteria: A cross sectional study at three primary health care facilities in Central Uganda. BMC Infectious Diseases. 1-10.
- (2020). Neonatal sepsis at Mulago national referral hospital in Uganda: Etiology, antimicrobial resistance, associated factors and case fatality risk. PLOS ONE.
- (2020). Community initiated kangaroo mother care and early child development in low birth weight infants in India-a randomized controlled trial. BMC Pediatrics. 1-12.
- (2020). Antenatal uterotonics as a risk factor for intrapartum stillbirth and first-day death in Haryana, India: A nested case-control study. Epidemiology. 668-676.
- (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.
- (2019). Prolonged and persistent diarrhoea is not restricted to children with acute malnutrition: an observational study in Ethiopia. Tropical medicine & international health. 1088-1097.
- (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.
- (2019). Experimental infection of human volunteers with the heat-stable enterotoxin-producing enterotoxigenic Escherichia coli strain TW11681. Pathogens. 1-14.
- (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.
- (2019). Effect of community-initiated kangaroo mother care on survival of infants with low birthweight: a randomised controlled trial. The Lancet. 1724-1736.
- (2019). Diarrhoeal disease and subsequent risk of death in infants and children residing in low-income and middle-income countries: analysis of the GEMS case-control study and 12-month GEMS-1A follow-on study. The Lancet Global Health. e204-e214.
- (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.
- (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 sider.
- (2018). Proliferation of enterotoxigenic Escherichia coli strain TW11681 in stools of experimentally infected human volunteers. Gut Pathogens. 8 sider.
- (2018). Kangaroo mother care: Using formative research to design an acceptable community intervention. BMC Public Health.
- (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.
- (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.
- (2017). When is a randomised controlled trial health equity relevant? Development and validation of a conceptual framework. BMJ Open. 9 sider.
- (2017). Predictors of death in infants with probable serious bacterial infection. Pediatric Research. 784-790.
- (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.
- (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.
- (2017). Early versus late BCG vaccination in HIV-1-exposed infants in Uganda: Study protocol for a randomized controlled trial. Trials. 1-17.
- (2017). CONSORT-Equity 2017 extension and elaboration for better reporting of health equity in randomised trials. BMJ Global Health. 14 sider.
- (2016). Towards rational design of a toxoid vaccine against the heatstable toxin of Escherichia coli. Infection and Immunity. 1239-1249.
- (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.
- (2016). Salivary IgA from the sublingual compartment as a novel noninvasive proxy for intestinal immune induction. Mucosal Immunology. 884-893.
- (2016). Nutritional intake and status of cobalamin and folate among non-pregnant women of reproductive age in Bhaktapur, Nepal. Nutrients.
- (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.
- (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 sider.
- (2015). Prevalence of iron deficiency and anemia among young children with acute diarrhea in Bhaktapur, Nepal. Healthcare. 593-606.
- (2015). Predictors of time to recovery in infants with probable serious bacterial infection. PLOS ONE. 11 sider.
- (2015). Predictors of duration and treatment failure of severe pneumonia in hospitalized young nepalese children. PLOS ONE. 11 sider.
- (2015). Microbiota that affect risk for shigellosis in children in low-income countries. Emerging Infectious Diseases. 242-250.
- (2015). Cost-effectiveness of peer counselling for the promotion of exclusive breastfeeding in Uganda. PLOS ONE. 18 sider.
- (2015). Child survival and BCG vaccination: A community based prospective cohort study in Uganda. BMC Public Health. 10 sider.
- (2014). Growth effects of exclusive breastfeeding promotion by peer counsellors in sub-Saharan Africa: the cluster-randomised PROMISE EBF trial. BMC Public Health. 12 sider.
- (2014). Experimental infection of healthy volunteers with enterotoxigenic Escherichia coli wild-type strain TW10598 in a hospital ward. BMC Infectious Diseases. 9 sider.
- (2014). Effect of withholding breastfeeding on the immune response to a live oral rotavirus vaccine in North Indian infants. Vaccine. A134-A139.
- (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.
- (2014). Early infant feeding practices in three African countries: the PROMISE-EBF trial promoting exclusive breastfeeding by peer counsellors. International Breastfeeding Journal. 19.
- (2014). Cobalamin and folate status in 6 to 35 months old children presenting with acute diarrhea in Bhaktapur, Nepal. PLOS ONE.
- (2014). Characterization of immunological cross-reactivity between enterotoxigenic Escherichia coli heat-stable toxin and human guanylin and uroguanylin. Infection and Immunity. 2913-2922.
- (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.
- (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.
- (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.
- (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.
- (2012). The high burden of infant deaths in rural Burkina Faso: a prospective community-based cohort study. BMC Public Health. 15 sider.
- (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.
- (2012). Statistical methods in the Global Enteric Multicenter Study (GEMS). Clinical Infectious Diseases. S246-S253.
- (2012). Risk factors for extended duration of acute diarrhea in young children. PLOS ONE.
- (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 sider.
- (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 sider.
- (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.
- (2012). A randomized controlled trial of zinc as adjuvant therapy for severe pneumonia in young children. Pediatrics. 701-708.
- (2011). Vaccination coverage and timeliness in three South African areas: a prospective study. BMC Public Health. 11 sider.
- (2011). RNA viruses in young Nepalese children hospitalized with severe pneumonia. The Pediatric Infectious Disease Journal. 1032-1036.
- (2011). Poor folate status predicts persistent diarrhea in 6- to 30-month-old north Indian children. Journal of Nutrition. 2226-2232.
- (2011). Perinatal mortality in Eastern Uganda: A community based prospective cohort study. PLOS ONE. 7 sider.
- (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.
- (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 sider.
- (2011). Is vaccination coverage a good indicator of age-appropriate vaccination? A prospective study from Uganda. Vaccine. 3564-3570.
- (2011). Exclusive breastfeeding promotion by peer counsellors in sub-Saharan Africa (PROMISE-EBF): a cluster-randomised trial. The Lancet. 420-427.
- (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.
- (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.
- (2011). A Comparative genomic analysis of diverse clonal types of enterotoxigenic escherichia coli reveals pathovar-specific conservation. Infection and Immunity. 950-960.
- (2010). Zinc supplementation for four months does not affect growth in young north Indian children. Journal of Nutrition. 630-634.
- (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.
- (2010). Respiratory viruses in Nepalese children with and without pneumonia: a case-control study. The Pediatric Infectious Disease Journal. 731-735.
- (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.
- (2010). Perinatal mortality in rural Burkina Faso: a prospective community-based cohort study. BMC Pregnancy and Childbirth. 9 sider.
- (2010). Maternal education is associated with vaccination status of infants less than 6 months in Eastern Uganda: a cohort study. BMC Pediatrics.
- (2010). Clinical presentation and severity of viral community-acquired pneumonia in young Nepalese children. The Pediatric Infectious Disease Journal. e1-e6.
- (2010). Ancestral Lineages of Human Enterotoxigenic Escherichia coli. Journal of Clinical Microbiology. 2916-2924.
- (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.
- (2009). Zinc deficiency is common among healthy women of reproductive age in Bhaktapur, Nepal. Journal of Nutrition. 594-597.
- (2009). RNA viruses in community-acquired childhood pneumonia in semi-urban Nepal; a cross-sectional study. BMC Medicine. 12 sider.
- (2008). Multi-country analysis of the effects of diarrhoea on childhood stunting. International Journal of Epidemiology. 816-830.
- (2007). Prevalence of iron deficiency and anemia among healthy women of reproductive age in Bhaktapur, Nepal. European Journal of Clinical Nutrition. 262-269.
- (2007). Folate, but not vitamin B-12 status, predicts respiratory morbidity in north Indian children. American Journal of Clinical Nutrition. 139-144.
- (2007). Community cohort study of Cryptosporidium parvum infections: sex-differential incidences associated with BCG and diptheria-tetanus-pertussis vaccinations. Vaccine. 2733-2741.
- (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.
- (2005). Intervention studies for improving global health and health care: an important arena for epidemiologists. Norsk Epidemiologi. 123-126.
- (2004). Protection from natural infections with enterotoxigenic Escherichia coli: longitudinal study. Ugeskrift for Læger. 4051-4053.
- (2004). Predictors of plasma zinc concentrations in children with acute diarrhea. American Journal of Clinical Nutrition. 451-456.
- (2004). Identification and molecular characterization of the gene encoding coli surface antigen 20 of enterotoxigenic Escherichia coli. FEMS Microbiology Letters. 131-138.
- (2004). Cost-effectiveness of zinc as adjunct therapy for acute childhood diarrhoea in developing countries. Bulletin of the World Health Organization. 523-531.
- (2004). Clonal relatedness of enterotoxigenic Escherichia coli strains isolated from a cohort of young children in Guinea-Bissau. Journal of Clinical Microbiology. 3100-3107.
- (2003). Vitamin A supplementation and childhood mortality: amplification of the non-specific effects of vaccines? International Journal of Epidemiology. 822-828.
- (2003). The immune response to pneumococcal polysaccharide vaccine in zinc depleted mice. Scandinavian Journal of Immunology. 76-80.
- (2003). Protection from natural infections with enterotoxigenic Escherichia coli: longitudinal study. The Lancet. 286-291.
- (2003). Protection from natural infections with enterotoxigenic Escherichia coli: longitudinal study. The Lancet. 286-291.
- (2003). Intestinal and systemic immune responses to an oral B-subunit-whole-cell cholera vaccine administered during zinc supplementation. Infection and Immunity. 3909-3913.
- (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.
- (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.
- (2003). Development and evaluation of genotypic assays for the detection and characterization of enterotoxigenic Escherichia coli. Diagnostic microbiology and infectious disease. 97-105.
- (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.
- (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 sider.
- (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.
- (2002). Substantial Reduction in Severe Diarrheal Morbidity by Daily Zinc Supplementation in Young North Indian Children. Pediatrics. 86.
- (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.
- (2002). Enterotoxigenic Escherichia coli infections and diarrhea in a cohort of young children in Guinea-Bissau. Journal of Infectious Diseases. 1740-1747.
- (2002). Efficacy of Zinc-fortified oral rehydration solution in 6- to 35-month-old children with acute diarrhea. Journal of Pediatrics. 677-682.
- (2002). Effectiveness and efficacy of zinc for the treatment of acute diarrhea in young children. Pediatrics. 898-903.
- (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.
- (2002). Clonal clustering and colonization factors among thermolabile and porcine thermostable enterotoxin-producing Escherichia coli. APMIS - Journal of Pathologiy, Microbiology and Immunology. 665-672.
- (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.
- (2001). Pneumococcal pulmonary infection, septicemia and survival in young zinc-depleted mice. British Journal of Nutrition. 301-306.
- (2001). Micronutrient deficiency in children. Commentary. British Journal of Nutrition. 199-203.
- (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. APMIS - Journal of Pathologiy, Microbiology and Immunology. 447-453.
- (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.
- (2000). The measurement of specific IgA in fecal extracts and in intestinal lavage fluid for the monitoring of mucosal immune responses. Journal of Immunological Methods (JIM). 53-62.
- (2000). Measurement of specific IgA in faecal extracts and intestinal lavage fluid for monitoring of mucosal immune responses. Journal of Immunological Methods (JIM). 53-62.
- (2000). Genotype Profiles of Rotavirus Strains from Children in a Suburban Community in Guinea-Bissau, Western Africa. Journal of Clinical Microbiology. 264-267.
- (1999). Community-based randomized controlled trial of reduced osmolarity oral rehydration solution in acute childhood diarrhea. Pediatr Infect Dis J. 789-795.
- (1997). Expression of colonization factor antigen I fimbriae by enterotoxigenic Escherichia coli; influence by growth conditions and a recombinant positive regulatory gene. APMIS - Journal of Pathologiy, Microbiology and Immunology. 247-254.
- (1997). Expression of colonization factor antigen I by enterotoxigenic <I>Escherichia coli</I>; influence of growth conditions and a recombinant positive regulatory gene. APMIS - Journal of Pathologiy, Microbiology and Immunology. 247-254.
- (1997). A new putative colonization factor, CS19, of human enterotoxigenic Escherichia coli. Infection and Immunity. 507-513.
- (1997). A new fimbrial putative colonization factor, CS19 in human enterotoxigenic <I>Escherichia coli</I>. Infection and Immunity. 507-13.
- (1996). Identification and characterization of a new putative colonization fac tor of enterotoxigenic Escherichia coli. Infection and Immunity. 2635-2642.
- (1996). Colonization factors of enterotoxigenic Esherichia coli isolated from children in North India. Journal of Infectious Diseases. 768-776.
- (1996). Colonization factors of enterotoxigenic Echerichia coli isolated from children in North India. Journal of Infectious Diseases. 768-776.
- (1994). Genotypic and phenotypic identification of coli surface antigen 6-positive enterotoxigenic Escherichia coli. Journal of Clinical Microbiology. 1295-1301.
- (1993). Induction of Colonization Factor Antigen I and Coli Surface Antigen 4 of enterotoxigenic Escherichia coli. Vaccine. 221-226.
- (1993). Evaluation of DNA-DNA hybridization for the direct detection of enterotoxigenic Escherichia coli in stool blots. Scandinavian Journal of Infectious Diseases. 457-463.
- (1993). Enteroaggregative Escherichia coli, a possible new pathogen causing acute and persistent diarrhea. Scandinavian Journal of Infectious Diseases. 579-583.
- (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.
- (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.
- (1992). Colonization factor antigen I, coli surface antigen 4 and putative colonization factor 0166 of enterotoxigenic Escherichia coli are genetically related. Vaccine. 289-289.
- (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.
- (1991). Nucleic acid hybridization for the identification of enterotoxigenic Escherichia coli. Reviews in Medical Microbiology. 138-146.
- (1989). Mechanism of spontaneous loss of heat-stable toxin (STa) Production in enterotoxigenic Escherichia coli. APMIS - Journal of Pathologiy, Microbiology and Immunology. 436-440.
- (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.
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