1. Biostat Global Consulting, 330 Blandford Drive, Worthington, OH 43085, USA
2. Department of Infectious Disease Epidemiology, London School of Hygiene and Tropical Medicine, Keppel Street, London WC1E 7HT, UK
3. American Red Cross, 431 18th Street NW, Washington, DC 20006, USA
4. Cabinet d’Appui au Développement Sanitaire, Abidjan, Côte d’Ivoire
5. Burundi Country Office, World Health Organization, Boulevard de I’Uprona-Rohero II, Bujumbura P.O. Box 1450, Burundi
6. Ministry of Health and Social Welfare, The Quadrangle, Banjul, The Gambia
7. US Indian Health Services Area Office, Indian Health Service, 40 N Central Ave #600, Phoenix, AZ 85004, USA
8. Child Health and Mortality Prevention Surveillance (CHAMPS) Network, Crown Agents in Sierra Leone, 28 Bathurst Street, Freetown, Sierra Leone
9. Department of Immunization, Vaccines and Biologicals, World Health Organization, Avenue Appia 20, 1211 Geneva, Switzerland