Affiliation: | From the *Médecins Sans Frontières, Tete, Mozambique; ?Médecins Sans Frontières, Maputo, Mozambique; ?Provincial Health Department, Tete, Mozambique; §Médecins Sans Frontières, Cape Town, South Africa; ∥Department of International Health, Johns Hopkins School of Public Health, Baltimore, MD; and ?Centre for Infectious Disease Epidemiology and Research, University of Cape Town, Cape Town, South Africa. |