James A Platts-Mills, Sudhir Babji, Ladaporn Bodhidatta, Jean Gratz et al.
BACKGROUND: Most studies of the causes of diarrhoea in low-income and middle-income countries have looked at severe disease in people presenting for care, and there are few estimates of pathogen-specific diarrhoea burdens in the community. METHODS: We undertook a birth cohort study with not only int...
James A Platts-Mills, Jie Liu, Elizabeth T. Rogawski McQuade, Furqan Kabir et al.
BACKGROUND: Optimum management of childhood diarrhoea in low-resource settings has been hampered by insufficient data on aetiology, burden, and associated clinical characteristics. We used quantitative diagnostic methods to reassess and refine estimates of diarrhoea aetiology from the Etiology, Risk...
Elizabeth T. Rogawski McQuade, Jie Liu, James A Platts-Mills, Furqan Kabir et al.
BACKGROUND: Enteropathogen infections in early childhood not only cause diarrhoea but contribute to poor growth. We used molecular diagnostics to assess whether particular enteropathogens were associated with linear growth across seven low-resource settings. METHODS: We used quantitative PCR to dete...
Jie Liu, Furqan Kabir, Jainaba Manneh, Paphavee Lertsethtakarn et al.
Background Childhood diarrhoea can be caused by many pathogens that are difficult to assay in the laboratory. Molecular diagnostic techniques provide a uniform method to detect and quantify candidate enteropathogens. We aimed to develop and assess molecular tests for identification of enteropathogen...
Margaret Kosek, Tahmeed Ahmed, Zulfiqar A Bhutta, Laura E. Caulfield et al.
BACKGROUND: Environmental enteropathy (EE), the adverse impact of frequent and numerous enteric infections on the gut resulting in a state of persistent immune activation and altered permeability, has been proposed as a key determinant of growth failure in children in low- and middle-income populati...
Caroline Amour, Jean Gratz, Estomih Mduma, Erling Svensen et al.
BACKGROUND: Enteropathogen infections have been associated with enteric dysfunction and impaired growth in children in low-resource settings. In a multisite birth cohort study (MAL-ED), we describe the epidemiology and impact of Campylobacter infection in the first 2 years of life. METHODS: Children...
Jie Liu, Jean Gratz, Caroline Amour, Rosemary Nshama et al.
Detection and quantification of enteropathogens in stool specimens is useful for diagnosing the cause of diarrhea but is technically challenging. Here we evaluate several important determinants of quantification: specimen collection, nucleic acid extraction, and extraction and amplification efficien...
Andrew Mertens, Jade Benjamin‐Chung, John M. Colford, Jeremy Coyle et al.
. Interventions such as nutritional supplementation during pregnancy and the postnatal period could help prevent growth faltering, but programmatic action has been insufficient to eliminate the high burden of stunting and wasting in low- and middle-income countries. Identification of age windows and...
Jade Benjamin‐Chung, Andrew Mertens, John M. Colford, Alan Hubbard et al.
. Stunting, a form of linear growth faltering, increases the risk of illness, impaired cognitive development and mortality. Global stunting estimates rely on cross-sectional surveys, which cannot provide direct information about the timing of onset or persistence of growth faltering-a key considerat...
Saba Rouhani, Pablo Peñataro Yori, Maribel Paredes Olórtegui, Mery Siguas Salas et al.
BACKGROUND: Norovirus is an important cause of childhood diarrhea. We present data from a longitudinal, multicountry study describing norovirus epidemiology during the first 2 years of life. METHODS: A birth cohort of 1457 children across 8 countries contributed 7077 diarrheal stools for norovirus t...
Andrew Mertens, Jade Benjamin‐Chung, John M. Colford, Alan Hubbard et al.
. Prevailing methods to measure wasting rely on cross-sectional surveys that cannot measure onset, recovery and persistence-key features that inform preventive interventions and estimates of disease burden. Here we analyse 21 longitudinal cohorts and show that wasting is a highly dynamic process of ...
Eric R. Houpt, Jean Gratz, Margaret Kosek, Anita K. M. Zaidi et al.
A central hypothesis of The Etiology, Risk Factors and Interactions of Enteric Infections and Malnutrition and the Consequences for Child Health and Development (MAL-ED) study is that enteropathogens contribute to growth faltering. To examine this question, the MAL-ED network of investigators set ou...
Elizabeth T. Rogawski McQuade, Richard L. Guerrant, Alexandre Havt, Ila F.N. Lima et al.
BACKGROUND: Enteroaggregative E. coli (EAEC) have been associated with mildly inflammatory diarrhea in outbreaks and in travelers and have been increasingly recognized as enteric pathogens in young children with and without overt diarrhea. We examined the risk factors for EAEC infections and their a...
Elizabeth T. Rogawski McQuade, Fariha Shaheen, Furqan Kabir, Arjumand Rizvi et al.
Culture-independent diagnostics have revealed a larger burden of Shigella among children in low-resource settings than previously recognized. We further characterized the epidemiology of Shigella in the first two years of life in a multisite birth cohort. We tested 41,405 diarrheal and monthly non-d...
Poonum Korpe, Cristian Valencia, Rashidul Haque, Mustafa Mahfuz et al.
Background: Cryptosporidium species are enteric protozoa that cause significant morbidity and mortality in children worldwide. We characterized the epidemiology of Cryptosporidium in children from 8 resource-limited sites in Africa, Asia, and South America. Methods: Children were enrolled within 17 ...