1. Center for Infectious Disease Modeling and Analysis, Yale School of Public Health, New Haven, CT 06510
2. Maxwell School of Citizenship and Public Affairs, Syracuse University, Syracuse, NY 13244
3. Department of Economics, College of Social and Behavioral Sciences, University of Massachusetts Amherst, Amherst, MA 01002
4. Institute for Health Policy Studies, School of Medicine, University of California, San Francisco, CA 94118
5. Emerging Pathogens Institute, University of Florida, Gainesville, FL 32610
6. Center for Vaccine Development and Global Health, University of Maryland School of Medicine, Baltimore, MD 21201