Microbiology / Medical Microbiology / Disease susceptibility / Prospective studies / Humans / Child / Female / Male / Infant / Glutamine / Public health systems and services research / Plasmodium falciparum / Hematocrit / Case Control Studies / Child / Female / Male / Infant / Glutamine / Public health systems and services research / Plasmodium falciparum / Hematocrit / Case Control Studies