1. World Health Organization, Geneva, Switzerland;
2. Task Force for Global Health, Atlanta, Georgia;
3. Programme Division, United Nations Children’s Fund, New York, New York, and
4. Bill & Melinda Gates Foundation, Seattle, Washington;
5. Gavi, the Vaccine Alliance, Geneva, Switzerland; and
6. FDK Consulting, Kirkland, Washington; and
7. Centers for Disease Control and Prevention, Atlanta, Georgia