University of the Witwatersrand, University of the Witwatersrand - Vaccines and Infectious Diseases Analytics Research Unit, Government of the United States of America - Centers for Disease Control and Prevention (CDC), University of the Witwatersrand, University of the Witwatersrand, Haramaya University - College Health and Medical Science, London School of Hygiene & Tropical Medicine - Department of Infectious Disease and Epidemiology, Haramaya University - Department of Medical Laboratory Sciences, London School of Hygiene & Tropical Medicine, University of Calabar (UNICAL) - Department of English & Literary Studies, Crown Agents, ICAP – Columbia University, World Health Organization (WHO), - Department of Pediatrics, Government of Mali - Centre pour le Développement des Vaccins, - Department of Pediatrics, Government of Mali - Centre pour le Développement des Vaccins, Centro de Investigação em Saúde de Manhiça, Centro de Investigação em Saúde da Manhiça (CISM), Centro de Investigação em Saúde da Manhiça (CISM), Centro de Investigação em Saúde da Manhiça (CISM), University of Barcelona - Institut de Salut Global de Barcelona (ISGlobal), International Centre for Diarrheal Disease Research (icddr,b), International Centre for Diarrheal Disease Research (icddr,b), International Centre for Diarrheal Disease Research (icddr,b), International Centre for Diarrheal Disease Research (icddr,b), International Centre for Diarrheal Disease Research (icddr,b), Government of the United States of America - Centers for Disease Control and Prevention (CDC), Government of the United States of America - Centers for Disease Control and Prevention (CDC), Kisumu County Department of Health, Emory University - Emory Global Health Institute, Emory University - Emory Global Health Institute, University of Barcelona - Institut de Salut Global de Barcelona (ISGlobal), University of the Witwatersrand - Vaccines and Infectious Diseases Analytics Research Unit and Independent