1. From the Child Health and Nutrition Unit, Department of Public Health, Institute of Tropical Medicine, Antwerp, Belgium (DR and PK); the Division of Nutrition Sciences, Cornell University, Ithaca, NY (J-PH); the Department of Parasitology, Institute of Tropical Medicine, Antwerp, Belgium (UdA); the Center Muraz, Ministry of Health, Bobo-Dioulasso, Burkina Faso (HL, M-CH, and NM); and the Departme