1. U.S. Centers for Disease Control and Prevention, Port-au-Prince, Haiti;
2. U.S. Centers for Disease Control and Prevention, Maputo, Mozambique;
3. Directorate of Epidemiology, Laboratory and Research, Port-au-Prince, Haiti;
4. National Laboratory of Public Health, Port-au-Prince, Haiti;
5. U.S. Centers for Disease Control and Prevention, Atlanta, Georgia;
6. Ben Gurion University of the Negev, Beersheva, Israel