1. Global Immunization Division; US Centers for Disease Control and Prevention; Atlanta GA USA
2. Expanded Program of Immunization; Ministry of Public Health and Population; Port-au-Prince Haiti
3. Directorate of Epidemiology, Laboratory and Research; Ministry of Public Health and Population; Port-au-Prince Haiti
4. Comprehensive Family Immunization Program; Pan American Health Organization; Washington DC USA
5. Epidemic Intelligence Service program; Centers for Disease Control and Prevention; Atlanta GA USA
6. Division of Global Health Protection; US Centers for Disease Control and Prevention; Atlanta GA USA
7. Haiti Country Office; US Centers for Disease Control and Prevention; Port-au-Prince Haiti