Vitenskapelig artikkel

• Arne Michael Taxt; Yuleima Diaz; Rein Aasland et al. (2016). Towards rational design of a toxoid vaccine against the heatstable toxin of Escherichia coli. (ekstern lenke)
• Gunnar Kvåle; Halvor Sommerfelt; Knut Fylkesnes (2005). Intervention studies for improving global health and health care: an important arena for epidemiologists. (ekstern lenke)
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• Victoria Nankabirwa; James K Tumwine; Olive Namugga et al. (2017). Early versus late BCG vaccination in HIV-1-exposed infants in Uganda: Study protocol for a randomized controlled trial. (ekstern lenke)
• Halvor Sommerfelt (1991). Nucleic acid hybridization for the identification of enterotoxigenic Escherichia coli. (ekstern lenke)
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• Sudha Basnet; Prakash S. Shrestha; Arun Sharma et al. (2012). A randomized controlled trial of zinc as adjuvant therapy for severe pneumonia in young children. (ekstern lenke)
• Thea Kølsen Fischer; Hans Steinsland; Kåre Mølbak et al. (2000). Genotype Profiles of Rotavirus Strains from Children in a Suburban Community in Guinea-Bissau, Western Africa. (ekstern lenke)
• Halvor Sommerfelt; Hans Steinsland; H.M.S. Grewal et al. (1996). Colonization factors of enterotoxigenic Echerichia coli isolated from children in North India. (ekstern lenke)
• Lauren Hookham; Liberty Cantrell; Stephen Cose et al. (2024). Seroepidemiology of SARS-CoV-2 in a cohort of pregnant women and their infants in Uganda and Malawi. (ekstern lenke)
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• Lars T. Fadnes; Victoria Nankabirwa; Halvor Sommerfelt et al. (2011). Is vaccination coverage a good indicator of age-appropriate vaccination? A prospective study from Uganda. (ekstern lenke)
• Sunita Taneja; S TaneJa; Nita Bhandari et al. (2007). Cobalamin and folate status in infants and young children in a low-to-middle income community in India. (ekstern lenke)
• Bireshwar Sinha; Sarmila Mazumder; Archana Thakur et al. (2025). Effect of kangaroo mother care in low birth weight infants on human milk intake: a randomized controlled trial. (ekstern lenke)
• Sunita Taneja; Bireshwar Sinha; Ravi Prakash Upadhyay et al. (2020). Community initiated kangaroo mother care and early child development in low birth weight infants in India-a randomized controlled trial. (ekstern lenke)
• Victoria Nankabirwa; Thorkild Tylleskar; Jolly Kaharuza Nankunda et al. (2011). Malaria Parasitaemia among Infants and Its Association with Breastfeeding Peer Counselling and Vitamin A Supplementation: A Secondary Analysis of a Cluster Randomized Trial. (ekstern lenke)
• Sudha Basnet; Arun Sharma; Maria Mathisen et al. (2015). Predictors of duration and treatment failure of severe pneumonia in hospitalized young nepalese children. (ekstern lenke)
• Thea Kølsen Fischer; Palle Valentiner-Branth; Hans Steinsland et al. (2002). Protective immunity after natural rotavirus infection. A community cohort study of newborn children in Guinea-Bisau, West Africa. (ekstern lenke)
• Nitya Wadhwa; Antara Sinha; Sudha Basnet et al. (2025). Zinc as adjunct treatment for clinical severe infection in young infants: A randomized double-blind placebo-controlled trial in India and Nepal. (ekstern lenke)
• Halvor Sommerfelt; Harleen Grewal; A-M. Svennerholm et al. (1992). Genetic relationship of putative colonization factor 0166 to colonization factor antigen I and coli surface antigen 4 of enterotoxigenic Escherichia coli. (ekstern lenke)
• Tarun Shankar Choudhary; Sarmila Mazumder; Øystein Ariansen Haaland et al. (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. (ekstern lenke)
• Maria Mathisen; Tor A Strand; Biswa N Sharma et al. (2009). RNA viruses in community-acquired childhood pneumonia in semi-urban Nepal; a cross-sectional study. (ekstern lenke)
• T. Halvorsen; Håvard Valvatne; Harleen Grewal et al. (1997). Expression of colonization factor antigen I by enterotoxigenic <I>Escherichia coli</I>; influence of growth conditions and a recombinant positive regulatory gene. (ekstern lenke)
• Mari Skar Manger; Tor A Strand; Sunita Taneja et al. (2011). Cobalamin Status Modifies the Effect of Zinc Supplementation on the Incidence of Prolonged Diarrhea in 6-to 30-Month-Old North Indian Children. (ekstern lenke)
• Ingunn Marie S. Engebretsen; Debra Jackson; Lars T. Fadnes et al. (2014). Growth effects of exclusive breastfeeding promotion by peer counsellors in sub-Saharan Africa: the cluster-randomised PROMISE EBF trial. (ekstern lenke)
• Halvor Sommerfelt; M. K. Bhan; R. Srivastava et al. (1993). Evaluation of DNA-DNA hybridization for the direct detection of enterotoxigenic Escherichia coli in stool blots. (ekstern lenke)
• Tor A Strand; Sunita Taneja; Per Magne Ueland et al. (2013). Cobalamin and folate status predicts mental development scores in North Indian children 12-18 mo of age. (ekstern lenke)
• Josephine Tumuhamye; Hans Steinsland; James K. Tumwine et al. (2020). Vaginal colonisation of women in labour with potentially pathogenic bacteria: A cross sectional study at three primary health care facilities in Central Uganda. (ekstern lenke)
• Manjeswori Ulak; Ram Krishna Chandyo; Ramesh K. Adhikari et al. (2014). Cobalamin and folate status in 6 to 35 months old children presenting with acute diarrhea in Bhaktapur, Nepal. (ekstern lenke)
• Oda Barth Vedøy; Hans Steinsland; Sunniva Todnem Sakkestad et al. (2023). Strong Association between Diarrhea and Concentration of Enterotoxigenic Escherichia coli Strain TW10722 in Stools of Experimentally Infected Volunteers. (ekstern lenke)
• Karen L. Kotloff; James Paul Nataro; William C. Blackwelder et al. (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. (ekstern lenke)
• Bireshwar Sinha; Halvor Sommerfelt; Per Ashorn et al. (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. (ekstern lenke)
• Prashant Singh; Ananya Arora; Tor A Strand et al. (2017). Predictors of death in infants with probable serious bacterial infection. (ekstern lenke)
• Nitya Wadhwa; Sudha Basnet; Uma Chandra Mouli Natchu et al. (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. (ekstern lenke)
• Jason W. Sahl; Hans Steinsland; Julia C. Redman et al. (2011). A Comparative genomic analysis of diverse clonal types of enterotoxigenic escherichia coli reveals pathovar-specific conservation. (ekstern lenke)
• Ram Krishna Chandyo; Manjeswori Ulak; Ramesh K. Adhikari et al. (2015). Prevalence of iron deficiency and anemia among young children with acute diarrhea in Bhaktapur, Nepal. (ekstern lenke)
• Palle Valentiner-Brandt; Hans Steinsland; Håkon K Gjessing et al. (1999). Community-based randomized controlled trial of reduced osmolarity oral rehydration solution in acute childhood diarrhea. (ekstern lenke)
• Thorkild Tylleskar; Debra Jackson; Nicolas Meda et al. (2011). Exclusive breastfeeding promotion by peer counsellors in sub-Saharan Africa (PROMISE-EBF): a cluster-randomised trial. (ekstern lenke)
• Hans Steinsland; Palle Valentiner-Branth; Håkon K Gjessing et al. (2003). Protection from natural infections with enterotoxigenic Escherichia coli: longitudinal study. (ekstern lenke)
• Abdoulaye Hama Diallo; Nicolas Meda; Emmanuel Zabsonre et al. (2010). Perinatal mortality in rural Burkina Faso: a prospective community-based cohort study. (ekstern lenke)
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• Arne Michael Taxt; Yuleima Diaz; Amélie Bacle et al. (2014). Characterization of immunological cross-reactivity between enterotoxigenic Escherichia coli heat-stable toxin and human guanylin and uroguanylin. (ekstern lenke)
• Nicolas Nagot; Chipepo Kankasa; Nicolas Meda et al. (2012). Lopinavir/Ritonavir versus Lamivudine peri-exposure prophylaxis to prevent HIV-1 transmission by breastfeeding: the PROMISE-PEP trial Protocol ANRS 12174. (ekstern lenke)
• Espoir Bwenge Malembaka; James K Tumwine; Grace Ndeezi et al. (2019). Effects of complementary feeding on attained height among lower primary school-aged children in Eastern Uganda: A nested prospective cohort study. (ekstern lenke)
• Hans Steinsland; Palle Valentiner-Branth; Harleen M. S. Grewal et al. (2003). Development and evaluation of genotypic assays for the detection and characterization of enterotoxigenic Escherichia coli. (ekstern lenke)
• Halvor Sommerfelt; Harleen Grewal; A-M. Svennerholm et al. (1992). Colonization factor antigen I, coli surface antigen 4 and putative colonization factor 0166 of enterotoxigenic Escherichia coli are genetically related. (ekstern lenke)
• Tor A Strand; DE Briles; HK Gjessing et al. (2001). Pneumococcal pulmonary infection, septicemia and survival in young zinc-depleted mice. (ekstern lenke)
• Maharaj Kishan Bhan; Halvor Sommerfelt; Tor A Strand (2001). Micronutrient deficiency in children. Commentary. (ekstern lenke)
• Øystein Haarklau Johansen; Alemseged Abdissa; Mike Zangenberg et al. (2022). A comparison of risk factors for cryptosporidiosis and non-cryptosporidiosis diarrhoea: A case-case-control study in Ethiopian children. (ekstern lenke)
• Harleen M. S. Grewal; H Vetvik; Hemming T Karlsen et al. (2000). The measurement of specific IgA in fecal extracts and in intestinal lavage fluid for the monitoring of mucosal immune responses. (ekstern lenke)
• Halvor Sommerfelt; Bjørn Ivar Haukanes; Karl-Henning Kalland et al. (1989). Mechanism of spontaneous loss of heat-stable toxin (STa) Production in enterotoxigenic Escherichia coli. (ekstern lenke)
• S. Bhatnagar; M. K. Bhan; Halvor Sommerfelt et al. (1993). Enteroaggregative Escherichia coli, a possible new pathogen causing acute and persistent diarrhea. (ekstern lenke)
• Karen L. Kotloff; Dilruba Nasrin; William C. Blackwelder et al. (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). (ekstern lenke)
• Natya Wadhwa; Uma Chandra Mouli Natchu; Halvor Sommerfelt et al. (2011). ORS containing zinc does not reduce duration or stool volume of acute diarrhea in hospitalized children. (ekstern lenke)
• Hans Steinsland; Palle Valentiner-Branth; Peter Aaby et al. (2004). Clonal relatedness of enterotoxigenic Escherichia coli strains isolated from a cohort of young children in Guinea-Bissau. (ekstern lenke)
• Palle Valentiner-Branth; Hans Steinsland; Thea Kølsen Fischer et al. (2003). Cohort study of Guinean children: incidence, pathogenicity, conferred protection and attributable risk for enteropathogens during the first 2 years of life. (ekstern lenke)
• Harleen M. S. Grewal; Tom Hemming Karlsen; H Vetvik et al. (2000). Measurement of specific IgA in faecal extracts and intestinal lavage fluid for monitoring of mucosal immune responses. (ekstern lenke)
• Mari Skar Manger; Sunita Taneja; Tor A Strand et al. (2011). Poor folate status predicts persistent diarrhea in 6- to 30-month-old north Indian children. (ekstern lenke)
• Bireshwar Sinha; Halvor Sommerfelt; Per Ashorn et al. (2022). Effect of community-initiated kangaroo mother care on breastfeeding performance in low birthweight infants: A randomized clinical trial. (ekstern lenke)
• Sarmila Mazumder; Ravi Prakash Upadhyay; Zelee Hill et al. (2018). Kangaroo mother care: Using formative research to design an acceptable community intervention. (ekstern lenke)
• William C. Blackwelder; Kousick Biswas; Yukun Wu et al. (2012). Statistical methods in the Global Enteric Multicenter Study (GEMS). (ekstern lenke)
• Janet E.G. Jull; Margaret Whitehead; Mark Petticrew et al. (2017). When is a randomised controlled trial health equity relevant? Development and validation of a conceptual framework. (ekstern lenke)
• Yuleima Diaz; Morten Andreas Govasli Larsen; Ephrem Debebe Zegeye et al. (2019). Immunizations with enterotoxigenic Escherichia coli heat-stable toxin conjugates engender toxin-neutralizing antibodies in mice that also cross-react with guanylin and uroguanylin. (ekstern lenke)
• Nicolas Nagot; Chipepo Kankasa; James K Tumwine et al. (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. (ekstern lenke)
• Nawshad Uddin Ahmed; Abdellatif Maamri; Adegoke G Falade et al. (2021). Global research priorities on COVID-19 for maternal, newborn, child and adolescent health. (ekstern lenke)
• Tom Hemming Karlsen; Halvor Sommerfelt; Skjalg Klomstad et al. (2003). Intestinal and systemic immune responses to an oral B-subunit-whole-cell cholera vaccine administered during zinc supplementation. (ekstern lenke)
• Victoria Nankabirwa; James K Tumwine; Proscovia M. Mugaba et al. (2015). Child survival and BCG vaccination: A community based prospective cohort study in Uganda. (ekstern lenke)
• Thea Kølsen Fischer; NA Page; D Griffin et al. (2003). Characterization of nontypeable rotavirus strains from Guinea-Bissau: Identification of G8 and G9 types and a high frequency of mixed infections. (ekstern lenke)
• Harleen Grewal; Håvard Valvatne; M. K. Bhan et al. (1997). A new putative colonization factor, CS19, of human enterotoxigenic Escherichia coli. (ekstern lenke)
• Victoria Nankabirwa; James K Tumwine; Thorkild Tylleskar et al. (2011). Perinatal mortality in Eastern Uganda: A community based prospective cohort study. (ekstern lenke)
• Hans Steinsland; David W Lacher; Halvor Sommerfelt et al. (2010). Ancestral Lineages of Human Enterotoxigenic Escherichia coli. (ekstern lenke)
• Hans Steinsland; Palle Valentiner-Branth; Michael Perch et al. (2002). Enterotoxigenic Escherichia coli infections and diarrhea in a cohort of young children in Guinea-Bissau. (ekstern lenke)
• Håvard Valvatne; Hans Steinsland; Harleen Grewal et al. (2004). Identification and molecular characterization of the gene encoding coli surface antigen 20 of enterotoxigenic Escherichia coli. (ekstern lenke)
• Tor A Strand; SK Hollingshead; K Julshamn et al. (2003). Effects of zinc deficiency and pneumococcal surface protein A immunization on zinc status and the risk of severe infection in mice. (ekstern lenke)
• Tor A Strand; Ramesh K Adhikari; Ram K Chandyo et al. (2004). Predictors of plasma zinc concentrations in children with acute diarrhea. (ekstern lenke)
• Håvard Valvatne; Halvor Sommerfelt; W Gaastra et al. (1996). Identification and characterization of a new putative colonization fac tor of enterotoxigenic Escherichia coli. (ekstern lenke)
• Samba O. Sow; Khitam Muhsen; Dilruba Nasrin et al. (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). (ekstern lenke)
• Halvor Sommerfelt; Hans Steinsland; Lize van der Merwe et al. (2012). Case/Control studies with follow-up: constructing the source population to estimate effects of risk factors on development, disease, and survival. (ekstern lenke)
• Tor A Strand; Pushpa R Sharma; Håkon K. Gjessing et al. (2012). Risk factors for extended duration of acute diarrhea in young children. (ekstern lenke)
• Sanjana Brahmawar Mohan; Halvor Sommerfelt; Jahn Frederik Frøen et al. (2020). Antenatal uterotonics as a risk factor for intrapartum stillbirth and first-day death in Haryana, India: A nested case-control study. (ekstern lenke)
• Harleen M. S. Grewal; Halvor Sommerfelt (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. (ekstern lenke)
• Ram Krishna Chandyo; Tor A Strand; Rune Johan Ulvik et al. (2007). Prevalence of iron deficiency and anemia among healthy women of reproductive age in Bhaktapur, Nepal. (ekstern lenke)
• Håvard Valvatne; Hans Steinsland; Halvor Sommerfelt (2002). Clonal clustering and colonization factors among thermolabile and porcine thermostable enterotoxin-producing Escherichia coli. (ekstern lenke)
• Ravi Prakash Upadhyay; Sunita Taneja; Tor Arne Strand et al. (2022). Early child stimulation, linear growth and neurodevelopment in low birth weight infants. (ekstern lenke)
• Ram Krishna Chandyo; Manjeswori Ulak; Halvor Sommerfelt et al. (2016). Nutritional intake and status of cobalamin and folate among non-pregnant women of reproductive age in Bhaktapur, Nepal. (ekstern lenke)
• Oda Barth Vedøy; Kurt Hanevik; Sunniva Todnem Sakkestad et al. (2018). Proliferation of enterotoxigenic Escherichia coli strain TW11681 in stools of experimentally infected human volunteers. (ekstern lenke)
• Hans Steinsland; Palle Valentiner-Branth; Håkon K Gjessing et al. (2003). Protection from natural infections with enterotoxigenic Escherichia coli: longitudinal study. (ekstern lenke)
• Seheri Luyanda Mapaseka; John Barr Dewar; Lize van der Merwe et al. (2010). Prospective hospital-based surveillance to estimate rotavirus disease burden in the Gauteng and North West Province of South Africa during 2003-2005. (ekstern lenke)
• Halvor Sommerfelt; Harleen Grewal; W. Gaastra et al. (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. (ekstern lenke)
• Tarun Shankar Choudhary; Sarmila Mazumder; Øystein Ariansen Haaland et al. (2021). Health equity impact of community-initiated kangaroo mother care: a randomized controlled trial. (ekstern lenke)
• Tor A Strand; SK Hollingshead; Kåre Julshamn et al. (2003). Effects of zinc deficiency and pneumococcal surface protein A immunization on zinc status and the risk of severe infection in mice. (ekstern lenke)
• Victoria Nankabirwa; Thorkild Tylleskär; Josephine Tumuhamye et al. (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. (ekstern lenke)
• Sarmila Mazumder; Sunita Taneja; Rajiv Bahl et al. (2014). Effect of implementation of Integrated Management of Neonatal and Childhood Illness programme on treatment seeking practices for morbidities in infants: cluster randomised trial. (ekstern lenke)
• Halvor Sommerfelt; Ann-Mari Svennerholm; Karl-Henning Kalland et al. (1988). Comparative Study of Colony Hybridization With Synthetic Oligonucleotide Probes and Enzyme-Linked Immunosorbent Assay for Identification of Enterotoxigenic Escherichia Coli. (ekstern lenke)
• Abdoulaye Hama Diallo; Nicolas Meda; Halvor Sommerfelt et al. (2012). The high burden of infant deaths in rural Burkina Faso: a prospective community-based cohort study. (ekstern lenke)
• Karen L. Kotloff; William C. Blackwelder; Dilruba Nasrin et al. (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. (ekstern lenke)
• Sunniva Todnem Sakkestad; Hans Steinsland; Steinar Skrede et al. (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. (ekstern lenke)
• Sunniva Todnem Sakkestad; Hans Steinsland; Steinar Skrede et al. (2019). Experimental infection of human volunteers with the heat-stable enterotoxin-producing enterotoxigenic Escherichia coli strain TW11681. (ekstern lenke)
• Bjarne Robberstad; Tor A Strand; Robert E Black et al. (2004). Cost-effectiveness of zinc as adjunct therapy for acute childhood diarrhoea in developing countries. (ekstern lenke)
• Tor A Strand; IS Aaberge; Amund Maage et al. (2003). The immune response to pneumococcal polysaccharide vaccine in zinc depleted mice. (ekstern lenke)
• Maria Mathisen; Tor Arne Strand; Biswa N Sharma et al. (2010). Clinical presentation and severity of viral community-acquired pneumonia in young Nepalese children. (ekstern lenke)
• Lumbwe Chola; Lars T. Fadnes; Ingunn Marie S. Engebretsen et al. (2015). Cost-effectiveness of peer counselling for the promotion of exclusive breastfeeding in Uganda. (ekstern lenke)
• Tor A Strand; Sunita Taneja; Nita Bhandari et al. (2007). Folate, but not vitamin B-12 status, predicts respiratory morbidity in north Indian children. (ekstern lenke)
• Rajiv Bahl; Nita Bhandari; M. Saksena et al. (2002). Efficacy of Zinc-fortified oral rehydration solution in 6- to 35-month-old children with acute diarrhea. (ekstern lenke)
• Nita Bhandari; Rajiv Bahl; S. Taneja et al. (2002). Substantial Reduction in Severe Diarrheal Morbidity by Daily Zinc Supplementation in Young North Indian Children. (ekstern lenke)
• Lars T. Fadnes; Debra Jackson; Ingunn Marie S. Engebretsen et al. (2011). Vaccination coverage and timeliness in three South African areas: a prospective study. (ekstern lenke)
• Freddie Bwanga; Claudine Mukashyaka; David Patrick Kateete et al. (2024). Vaginal colonization with virulent and methicillin resistant Staphylococcus aureus among Ugandan women in Labour. (ekstern lenke)
• Brianna Lindsay; Joseph O. Oundo; Mohammad Anowar Hossain et al. (2015). Microbiota that affect risk for shigellosis in children in low-income countries. (ekstern lenke)
• David Mukunya; Marte Emilie Sandvik Haaland; James K. Tumwine et al. (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. (ekstern lenke)
• Lars T. Fadnes; Victoria Nankabirwa; Ingunn Marie S. Engebretsen et al. (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. (ekstern lenke)
• Kurt Z. Long; Inong R. Gunanti; Chris Stride et al. (2024). Identification of Enteric Pathogen Reservoirs and Transmission Pathways Associated with Short Childhood Stature in the Kolkata Indian Site of the Global Enteric Multicenter Study. (ekstern lenke)
• W Checkley; G Buckley; RH Gilman et al. (2008). Multi-country analysis of the effects of diarrhoea on childhood stunting. (ekstern lenke)
• Palle Valentiner-Branth; Hans Steinsland; Gina Santos et al. (2001). Community-based controlled trial of dietary management of children with persistent diarrhea: sustained beneficial effect on ponderal and linear growth. (ekstern lenke)
• Harleen Grewal; Håvard Valvatne; M. K. Bhan et al. (1997). A new fimbrial putative colonization factor, CS19 in human enterotoxigenic <I>Escherichia coli</I>. (ekstern lenke)
• Halvor Sommerfelt; Hans Steinsland; H.M.S. Grewal et al. (1996). Colonization factors of enterotoxigenic Esherichia coli isolated from children in North India. (ekstern lenke)
• Audun Aase; Halvor Sommerfelt; Lizette Balle Petersen et al. (2016). Salivary IgA from the sublingual compartment as a novel noninvasive proxy for intestinal immune induction. (ekstern lenke)
• Maria Mathisen; Sudha Basnet; Arun Sharma et al. (2011). RNA viruses in young Nepalese children hospitalized with severe pneumonia. (ekstern lenke)
• Sunita Taneja; Tor A Strand; Halvor Sommerfelt et al. (2010). Zinc supplementation for four months does not affect growth in young north Indian children. (ekstern lenke)
• Nita Bhandari; Sarmila Mazumder; Sunita Taneja et al. (2012). Effect of implementation of Integrated Management of Neonatal and Childhood Illness (IMNCI) programme on neonatal and infant mortality: cluster randomised controlled trial. (ekstern lenke)
• Victoria Nankabirwa; Thorkild Tylleskar; James K. Tumwine et al. (2010). Maternal education is associated with vaccination status of infants less than 6 months in Eastern Uganda: a cohort study. (ekstern lenke)
• Halvor Sommerfelt; Harleen Grewal; W. Gaastra et al. (1991). Presence of cfaD-homologous sequences and expression of coli surface antigen 4 on enterotoxigenic Escherichia coli; relevance for diagnostic procedures. (ekstern lenke)
• Maria Mathisen; Tor Arne Strand; Palle Valentiner-Branth et al. (2010). Respiratory viruses in Nepalese children with and without pneumonia: a case-control study. (ekstern lenke)
• Sarmila Mazumder; Sunita Taneja; Suresh Kumar Dalpath et al. (2017). Impact of community-initiated Kangaroo Mother Care on survival of low birth weight infants: Study protocol for a randomized controlled trial. (ekstern lenke)
• RK Chandyo; Tor Arne Strand; M Mathisen et al. (2009). Zinc deficiency is common among healthy women of reproductive age in Bhaktapur, Nepal. (ekstern lenke)
• Josephine Tumuhamye; Hans Steinsland; Freddie Bwanga et al. (2021). Vaginal colonization with antimicrobial-resistant bacteria among women in labor in central Uganda: prevalence and associated factors. (ekstern lenke)
• Bireshwar Sinha; Halvor Sommerfelt; Per Ashorn et al. (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. (ekstern lenke)
• Palle Valentiner-Branth; Prakash S Shrestha; Ram K Chandyo et al. (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. (ekstern lenke)
• Hans Steinsland; Palle Valentiner-Branth; Håkon K Gjessing et al. (2004). Protection from natural infections with enterotoxigenic Escherichia coli: longitudinal study. (ekstern lenke)
• Brianna Lindsay; John B. Ochieng; Usman N. Ikumapayi et al. (2013). Quantitative PCR for Detection of Shigella Improves Ascertainment of Shigella Burden in Children with Moderate-to-Severe Diarrhea in Low-Income Countries. (ekstern lenke)
• Josephine Tumuhamye; Halvor Sommerfelt; Freddie Bwanga et al. (2020). Neonatal sepsis at Mulago national referral hospital in Uganda: Etiology, antimicrobial resistance, associated factors and case fatality risk. (ekstern lenke)
• Myron M. Levine; Dilruba Nasrin; Sozinho Acácio et al. (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. (ekstern lenke)
• Ingunn Marie S. Engebretsen; Victoria Nankabirwa; Tanya Doherty et al. (2014). Early infant feeding practices in three African countries: the PROMISE-EBF trial promoting exclusive breastfeeding by peer counsellors. (ekstern lenke)
• W. Gaastra; Halvor Sommerfelt; L van Dijk et al. (2002). Antigenic variation within the subunit protein of members of the colonization factor antigen I group of fimbrial proteins in human enterotoxigenic Escherichia coli. (ekstern lenke)
• Sarmila Mazumder; Sunita Taneja; Brinda Dube et al. (2019). Effect of community-initiated kangaroo mother care on survival of infants with low birthweight: a randomised controlled trial. (ekstern lenke)
• Temsunaro Rongsen-Chandola; Tor Strand; Nidhi Goyal et al. (2014). Effect of withholding breastfeeding on the immune response to a live oral rotavirus vaccine in North Indian infants. (ekstern lenke)
• Prashant Singh; Nitya Wadhwa; Rakesh Lodha et al. (2015). Predictors of time to recovery in infants with probable serious bacterial infection. (ekstern lenke)
• Harleen Grewal; A Hellander; A-M. Svennerholm et al. (1994). Genotypic and phenotypic identification of coli surface antigen 6-positive enterotoxigenic Escherichia coli. (ekstern lenke)
• CS Benn; C Bale; Halvor Sommerfelt et al. (2003). Vitamin A supplementation and childhood mortality: amplification of the non-specific effects of vaccines?. (ekstern lenke)
• Dilruba Nasrin; William C. Blackwelder; Halvor Sommerfelt et al. (2021). Pathogens Associated With Linear Growth Faltering in Children With Diarrhea and Impact of Antibiotic Treatment: The Global Enteric Multicenter Study. (ekstern lenke)
• Palle Valentiner-Branth; Hans Steinsland; Thea Kølsen Fischer et al. (2003). Cohort study of Guinean children: incidence, pathogenicity, conferred protection and attributable risk for enteropathogens during the first 2 years of life. (ekstern lenke)
• Felipe Del Canto; Patricio Valenzuela; Lidia Cantero et al. (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. (ekstern lenke)
• Josephine Tumuhamye; Halvor Sommerfelt; James K Tumwine et al. (2022). Umbilical cord stump infections in central Uganda: Incidence, bacteriological profile, and risk factors. (ekstern lenke)
• T. Halvorsen; Håvard Valvatne; Harleen Grewal et al. (1997). Expression of colonization factor antigen I fimbriae by enterotoxigenic Escherichia coli; influence by growth conditions and a recombinant positive regulatory gene. (ekstern lenke)
• Harleen Grewal; W. Gaastra; A-M. Svennerholm et al. (1993). Induction of Colonization Factor Antigen I and Coli Surface Antigen 4 of enterotoxigenic Escherichia coli. (ekstern lenke)
• Mike Zangenberg; ØYSTEIN HAARKLAU JOHANSEN; Alemseged Abdissa et al. (2019). Prolonged and persistent diarrhoea is not restricted to children with acute malnutrition: an observational study in Ethiopia. (ekstern lenke)
• Ram K Chandyo; Prakash S Shrestha; Palle Valentiner-Branth et al. (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. (ekstern lenke)
• Tor A Strand; RK Chandyo; Rajiv Bahl et al. (2002). Effectiveness and efficacy of zinc for the treatment of acute diarrhea in young children. (ekstern lenke)
• Steinar Skrede; Hans Steinsland; Halvor Sommerfelt et al. (2014). Experimental infection of healthy volunteers with enterotoxigenic Escherichia coli wild-type strain TW10598 in a hospital ward. (ekstern lenke)

Leserbrev

• Brianna R. Lindsay; Subhra Chakraborty; Clayton Harro et al. (2014). Quantitative PCR and culture evaluation for enterotoxigenic Escherichia coli (ETEC) associated diarrhea in volunteers. (ekstern lenke)
• Ingvild Fossgard Sandøy; Bente Elisabeth Moen; Simon Nygaard Øverland et al. (2024). Forskere føler seg lurt. (ekstern lenke)
• Shinjini Bhatnagar; Uma Chandra Mouli Natchu; Nitya Wadhwa et al. (2012). Zinc for probable serious bacterial infection in infants reply. (ekstern lenke)
• Melanie Etti; Musa Sekikubo; Victoria Nankabirwa et al. (2020). SARS-CoV-2 infection in pregnant women and their newborns. (ekstern lenke)
• Halvor Sommerfelt (2021). Estimating the disease burden ascribed to specific enteropathogens. (ekstern lenke)

Vitenskapelig litteraturgjennomgang

• Ephrem Debebe Zegeye; Morten Andreas Govasli Larsen; Halvor Sommerfelt et al. (2018). Development of an enterotoxigenic Escherichia coli vaccine based on the heat-stable toxin. (ekstern lenke)
• Arne Michael Taxt; Rein Aasland; Halvor Sommerfelt et al. (2010). Heat-stable enterotoxin of enterotoxigenic escherichia coli as a vaccine target. (ekstern lenke)
• Jennifer R. Verani; Abdullah H. Baqui; Claire V. Broome et al. (2017). Case-control vaccine effectiveness studies: Preparation, design, and enrollment of cases and controls. (ekstern lenke)
• James M Fleckenstein; Philip R Hardwidge; George P Munson et al. (2010). Molecular mechanisms of enterotoxigenic Escherichia coli infection. (ekstern lenke)
• Myron M Levine; Salim Abdullah; Yyaseen M. Arabi et al. (2021). Viewpoint of a WHO Advisory Group Tasked to Consider Establishing a Closely-monitored Challenge Model of Coronavirus Disease 2019 (COVID-19) in Healthy Volunteers. (ekstern lenke)
• Jennifer R. Verani; Abdullah H. Baqui; Claire V. Broome et al. (2017). Case-control vaccine effectiveness studies: Data collection, analysis and reporting results. (ekstern lenke)

Konferanseabstrakt

• S. Taneja; Tor A Strand; Halvor Sommerfelt et al. (2009). ZINC SUPPLEMENTATION FOR FOUR MONTHS DOES NOT HAVE A SUBSTANTIAL EFFECT ON GROWTH IN YOUNG NORTH INDIAN CHILDREN. (ekstern lenke)
• Merete Bolstad; Halvor Sommerfelt; Per Brandtzæg et al. (2011). Stability of secretory IgA in saliva. (ekstern lenke)
• Gunnar Kvåle; Halvor Sommerfelt (2009). Measuring the impact of health interventions in complex settings: need for a common evaluation framework. (ekstern lenke)
• Thorkild Tylleskar; Hama Diallo; Victoria Nankabirwa et al. (2012). High perinatal mortality in Burkina Faso and Uganda. (ekstern lenke)
• Victoria Nankabirwa; Thorkild Tylleskar; Jolly Kaharuza Nankunda et al. (2011). Prevalence of malaria parasitaemia among infants in Uganda and its association with breastfeeding, peer counselling and vitamin a supplementation. (ekstern lenke)
• G Kvåle; Halvor Sommerfelt (2009). Measuring the impact of health interventions in complex settings: need for a common evaluation framework. (ekstern lenke)
• Maria Mathisen; Tor A Strand; Biswa N. Sharma et al. (2008). RNA Viruses Are an Important Cause of Community-acquired Pneumonia in Nepalese Children Living in a Semi-urban District in Kathmandu Valley. (ekstern lenke)
• Thorkild Tylleskär; Mickey Chopra; Hama Diallo et al. (2009). Preliminary results from the multi-centre cluster-randomised behaviour intervention trial PROMISE EBF: breastfeeding promotion in Sub-Saharan Africa. (ekstern lenke)
• Tor A Strand; PR Sharma; RK Chandyo et al. (2009). FOLATE AND VITAMIN B12 STATUS IN YOUNG NEPALESE CHILDREN. (ekstern lenke)
• Ram Krishna Chandyo; Prakash S. Shrestha; P Valentiner-Branth et al. (2009). EFFICACY OF SHORT COURSE ORAL ZINC GIVEN DURING PNEUMONIA ON SUBSEQUENT MORBIDITY AMONG YOUNG CHILDREN IN NEPAL. (ekstern lenke)
• Mari Skar Manger; Maharaj Kishan Bhan; Tor A Strand et al. (2009). DOES VITAMIN B12 OR FOLATE STATUS MODIFY THE IMPACT OF ZINC SUPPLEMENTATION ON THE INCIDENCE OF DIARRHEA?. (ekstern lenke)

Masteroppgave

• Thandar Lwin; Harleen Grewal; Halvor Sommerfelt (2004). Drug resistant tuberculosis in Yangon, Myanmar. (ekstern lenke)

Konferanseforedrag

• Ram K Chandyo; Tor A Strand; Rune J Ulvik et al. (2004). Effect of zinc on childhood diarrhea. Results from the Bhaktapur study. (ekstern lenke)
• Tom Hemming Karlsen; Harleen M. S. Grewal; Skjalg Klomstad et al. (2001). Mucosal and systemic immune responses to the oral CTB-whole cell cholera vaccine (rBS-WC) administered during zinc supplementation to zinc-replete adults. (ekstern lenke)
• Øystein Haarklau Johansen; Alemseged Abdissa; Mike Zangenberg et al. (2019). Prolonged and persistent diarrhoea in children: a case-control study in Ethiopia. (ekstern lenke)
• T.A. Strand; A Måge; I.S. Aaberge et al. (1998). Growth and Immune Response to Pneumococcal Polysaccharide Vaccine in young Zinc Deficient Mice. (ekstern lenke)
• Tom Hemming Karlsen; Halvor Sommerfelt; Skjalg Klomstad et al. (2003). Oral zinc supplementation modulates the immune response to an oral B-subunit-whole-cell cholera vaccine. (ekstern lenke)
• Håvard Valvatne; Halvor Sommerfelt (1997). Clonal clustering and colonization factors of STaI LT Escherichia coli. (ekstern lenke)
• Halvor Sommerfelt; Sunita Taneja; Tor A Strand et al. (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. (ekstern lenke)
• Harleen Grewal; T.H. Karlsen; H. Vetvik et al. (1998). Measurement of specific IgA in fecal extracts and in intestinal lavage fluid for monitoring of mucosal immune responses after rectal and gastric immunization. (ekstern lenke)
• Palle Valentiner-Branth; Hans Steinsland; Thea Fischer et al. (2003). Incidence, Pathogenicity and Attributable risk of enteropathogens in a birth cohort study in Guinea-Bissau. (ekstern lenke)
• Sunniva Todnem Sakkestad; Kristine Lillebø; Hans Steinsland et al. (2017). Developing a controlled human infection model for testing heat-stable toxoid-based vaccine candidates for enterotoxigenic Escherichia coli diarrhea. (ekstern lenke)
• Sunniva Todnem Sakkestad; Hans Steinsland; Steinar Skrede et al. (2018). ETEC strain TW10722 may be suitable for use in vaccine challenge studies for testing heat-stable toxoid based vaccine candidates. (ekstern lenke)
• Håvard Valvatne; Halvor Sommerfelt; W. Gaastra et al. (1996). Identification and characterization of CS20, a new putative colonizatio n factor of enterotoxigenic Escherichia coli. (ekstern lenke)
• Tor A Strand; RK Chandyo; Rajiv Bahl et al. (2002). Zinc administration in Nepalese children with acute diarrhea, who will benefit most?. (ekstern lenke)
• Thorkild Tylleskär; Mickey Chopra; Hama Diallo et al. (2009). Preliminary results from the multi-centre cluster-randomised behaviour intervention trial PROMISE EBF: breastfeeding promotion in Sub-Saharan Africa. (ekstern lenke)
• Halvor Sommerfelt (2004). . Zinc as a modulator of immunological responses to a CTB-WC cholera vaccine. (ekstern lenke)
• Tor A Strand; Sunita Taneja; Nita Bhandari et al. (2005). Folate, but not cobalamin status predicts respiratory morbidity in north Indian children. (ekstern lenke)
• Tor A Strand; D.E. Briles; H. Gjessing et al. (1998). Pulmonary pneumococcal infection and septicemia in zinc deficient mice. (ekstern lenke)
• Ram K Chandyo; Tor A Strand; Manju S Ulak et al. (2004). Cobalamin and folate status among adolescent girls in Bhaktapur, Nepal. (ekstern lenke)
• Harleen Grewal; TH Karlsen; H Vetvik et al. (1998). Measurement of specific IgA in fecal extracts and in intestinal lavage fluid for monitoring of mucosal immune responses after rectal and gastric immunization. (ekstern lenke)
• Thorkild Tylleskar; Mickey Chopra; Abdoulaye Hama Diallo et al. (2010). Exclusive breastfeeding promotion by peer-counsellors in Sub-Saharan Africa: Results from the multi-centre cluster-randomised behaviour intervention trial PROMISE EBF. (ekstern lenke)
• Tom Hemming Karlsen; Harleen M. S. Grewal; Skjalg Klomstad et al. (2001). Mucosal and systemic immune responses to the oral CTB-whole cell cholera vaccine (rBS-WC) administered during zinc supplementation to zinc-replete adults. (ekstern lenke)
• W Gaastra; L van Dijk; H.M.S Grewal et al. (1996). The CFA/I like group of colonization factors of human ETCA. (ekstern lenke)
• W. Gaastra; Harleen Grewal; L. van Dijk et al. (1997). The colonization factor antigen I like group of fimbrial proteins of human enterotoxigenic <I>Escherichia coli</I>. (ekstern lenke)
• P Valentiner-Branth; Hans Steinsland; G. Santos et al. (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. (ekstern lenke)
• Frode Lindemark; Tor A Strand; Halvor Sommerfelt et al. (2004). Levels of antibodies against enterotoxigenic Escherichia coli and Vibrio cholerae in young childrenin Bhanktapur, Nepal. (ekstern lenke)
• Sunniva Todnem Sakkestad; Hans Steinsland; Steinar Skrede et al. (2018). Human experimental infection with ST-only enterotoxigenic Escherichia coli wild-type strain TW11681. (ekstern lenke)
• Pål Puntervoll; Yuleima Diaz; Arne Michael Taxt et al. (2016). Towards rational design of a toxoid vaccine against the heat-stable toxin-producing Escherichia coli. (ekstern lenke)
• Ingvild Fossgard Sandøy; Halvor Sommerfelt; Tarun Shankar Choudhary et al. (2024). "Equity Impact Studies" - Plenary Session - Centre of Excellence Equity Impact Workstream. (ekstern lenke)
• Tom Hemming Karlsen; Harleen M. S. Grewal; Skjalg Klomstad et al. (2001). Mucosal and systemic immune responses to the oral CTB-whole cell cholera vaccine (rBS-WC) administered during zinc supplementation to zinc-replete adults. (ekstern lenke)
• W. Gaastra; Harleen Grewal; L. van Dijk et al. (1997). The colonization factor antigen I like group of fimbrial proteins of human enterotoxigenic Escherichia coli. (ekstern lenke)

Konferanseposter

• Victoria Nankabirwa; Thorkild Tylleskar; Halvor Sommerfelt et al. (2010). Maternal secondary education reduces missed childhood vaccinations by fifty percent: evidence from a community based prospective cohort study. (ekstern lenke)
• Josephine Tumuhamye; James K Tumwine; Freddie Bwanga et al. (2017). Microbial colonization of Ugandan women in labor. (ekstern lenke)
• Sunita Taneja; Tor A Strand; Halvor Sommerfelt et al. (2009). Zinc supplementation for four months does not have a substantial effect on growth in young north indian children. (ekstern lenke)
• Tor A Strand; Sunita Taneja; Nita Bhandari et al. (2009). Vitamin B12, but not folate status predicts mental development scores in north indian toddlers. (ekstern lenke)
• Victoria Nankabirwa; James K. Tumwine; Halvor Sommerfelt et al. (2010). Perinatal motrality in Eastern Uganda: a community-based prospective cohort study. (ekstern lenke)
• Frode Lindemark; Tor A Strand; Halvor Sommerfelt et al. (2003). Levels of antibodies against enterotoxigenic Escherichia coli and Vibrio cholerae in young children in Bhaktapur, Nepal. (ekstern lenke)
• David Mukunya; Thorkild Tylleskär; Halvor Sommerfelt et al. (2017). Willingness to pay for a single dose 7.1% chlorhexidine digluconate solution for umbilical cord care in central Uganda: a contingency valuation study. (ekstern lenke)
• Yves-Marie Coic; Yuleima Diaz; Ephrem Debebe Zegeye et al. (2018). On the challenge of cysteine-rich peptide synthesis: the heat-stable toxin from Enterotoxigenic Escherichia coli (STh) and its toxoids. (ekstern lenke)
• Thea Kølsen Fischer; Hans Steinsland; Palle Valentiner-Branth et al. (2002). Community-based surveillance of rotavirus infections in Guinea-Bissau. (ekstern lenke)
• Ingunn Marie S. Engebretsen; Debra Jackson; Lars Thore Fadnes et al. (2012). Promotion of exclusive breastfeeding by peer-counsellors in Sub-Saharan Africa: Anthropometric outcomes from the cluster randomised PROMISE EBF TRIAL. (ekstern lenke)
• Tor A Strand; Pushpa R Sharma; Ram Krishna Chandyo et al. (2009). Folate and vitamin B12 status in young nepalese children. (ekstern lenke)
• Frode Lindemark; Tor A Strand; Halvor Sommerfelt et al. (2004). Levels of antibodies against enterotoxigenic Escherichia coli and Vibrio cholerae in young childrenin Bhanktapur, Nepal. (ekstern lenke)
• Thea Kølsen Fischer; Palle Valentiner-Branth; Hans Steinsland et al. (2002). Protective immunity conferred by natural rotavirus infection. (ekstern lenke)
• David Mukunya; Marte Emilie Sandvik Haaland; Thorkild Tylleskär et al. (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. (ekstern lenke)
• Oda Barth Vedøy; Sunniva Todnem Sakkestad; Halvor Sommerfelt et al. (2018). Quantitation of enterotoxigenic Escherichia coli strain TW11681 in stools of experimentally infected human volunteers. (ekstern lenke)
• Ingunn Marie S. Engebretsen; Debra Jackson; Lars Thore Fadnes et al. (2012). Is promotion of exclusive breastfeeding safe in sub-Saharan Africa with respect to child growth? Results form the cluster-randomised PROMISE EBF-trial. (ekstern lenke)

Doktorgradsavhandling

• Håvard Valvatne; Harleen Grewal; Halvor Sommerfelt (2004). Colonisation Factors of Enterotoxigenic Escherichia coli; detection and characterisation. (ekstern lenke)
• Halvor Sommerfelt (1990). DNA-DNA hybridization for identification of enterotoxigenic Escherichia coli. (ekstern lenke)

Fremhevet artikkel i media

• Sverre O. Lie; Dipali Gulati; Halvor Sommerfelt et al. (2011). Millennium development goals for health--will we reach them by 2015?. (ekstern lenke)
• Gunnar Kvåle; Halvor Sommerfelt (2011). Internasjonal satsing for bedre helse - Norges rolle. (ekstern lenke)

Lederartikkel

• Gunnar Kvåle; Halvor Sommerfelt (2009). Bistand for bedre helse - Norges rolle. (ekstern lenke)

Forelesning

• Halvor Sommerfelt (1997). Molecular epidemiological studies of childhood diarrhea in India and Guinea Bissau - relevance for vaccine development. (ekstern lenke)
• Ephrem Debebe Zegeye; Françoice Baleux; Anaxee Barman et al. (2018). Towards a heat-stable toxin-based subunit vaccine against enterotoxigenic E. coli. (ekstern lenke)

Deltakelse i radio eller TV

• Magnus Vollset; Ole Frithjof Norheim; Kristin Greve-Isdahl Mohn et al. (2021). UiB Innsikt: Bergens vaksineforskning – i går, i dag og i morgen. (ekstern lenke)

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CISMAC - Centre for intervention science in maternal and child health