Institute of Child Health and Human Development, National Institutes of Health, University of the Philippines, Institute of Child Health and Human Development, National Institutes of Health, University of the Philippines-Manila, Institute of Child Health and Human Development, National Institutes of Health, University of the Philippines-Manila, University of the Philippines, Manila - Institute of Child Health and Human Development, Institute of Child Health and Human Development, National Institutes of Health, University of the Philippines, Research Institute for Tropical Medicine, Sanofi Pasteur Vaccines Epidemiology and Modeling, Sanofi Pasteur Vaccines Epidemiology and Modeling, University of Illinois at Urbana-Champaign, University of the Philippines, Manila - Institute of Child Health and Human Development and Institute of Child Health and Human Development, National Institutes of Health, University of the Philippines