Lambaréné Medical Research Center (CERMEL), Lambaréné, Corporacion Medica de General San Martin, University of the Basque Country - Biocruces Bizkaia Health Research Institute, Universidad Simón Bolívar (USB) - Clínica de la Costa, Utrecht University - Julius Center for Health Sciences and Primary Care, Cevaxin, Instituto de Investigaciones Clinicas de Mar del Plata, Cohezio, Instituto de Investigación Nutricional, University of Tübingen - Institute of Tropical Medicine, Unidad de Medicina Especializada, Clinica Medica San Martin, Centro de Atención e Investigación Médica (CAIMED), Hospital Zonal General de Agudos Descentralizado Evita Pueblo de Berazategui, Lambaréné Medical Research Center (CERMEL), LambarénéUniversity of Amsterdam - Amsterdam Institute for Infection and Immunity, Clinical Research Institute Quilmes (Instituto de Investigaciones Clínicas Quilmes), CureVac AG, CureVac AG, Instituto de Investigación Nutricional, University of Cologne - Division of Infectious Diseases, Ghent University - Center for Vaccinology (CEVAC), CureVac AG, TecSalud - School of Medicine and Health Sciences, Universidad Peruana Cayetano Heredia - Instituto de Medicina Tropical Alexander von Humboldt, Sanatorio Parque S.A. Rosario, PanAmerican Clinical Research, Hospital Universitario Maternidad Nuestra Señora de La Altagracia - Fundacion Dominicana de Perinatologia PRO-BEBE, Inc., PanAmerican Clinical Research, Hospital del Niño Dr. José Renán Esquivel, Cogitars GmbH, Ludwig Maximilian University of Munich (LMU) - Division of Infectious Diseases and Tropical Medicine, Centro de estudios en Infectologia Pediatrica (CEIP), Biodonostia Health Research Institute - Primary Care Group, P95 Pharmacovigilance and Epidemiology Services, Instituto de Investigaciones Clínicas Zárate, CureVac AG and Independent