1. From Homegrown Solutions for Health (K.N.F., L.E., Y.B.), Faculty of Medicine and Biomedical Sciences, University of Yaoundé I (L.E., Y.B.), and the Ministry of Public Health (L.E.), Yaoundé, and Poli District Hospital, Poli (H.M.) — all in Cameroon; Africa Centers for Disease Control and Prevention, Addis Ababa, Ethiopia (K.N.F.); and Institut Pasteur de Bangui, Bangui, Central African Republic (Y.B.).