1 School of Public Policy, University of California, Riverside, CA, USA. Electronic address: richard.carpiano@ucr.edu.
2 Department of Health Law, Policy & Management, Boston University School of Public Health, Boston, MA, USA.
3 Stanford Internet Observatory, Stanford University, Stanford, CA, USA.
4 Department of Health Behavior, Gillings School of Global Public Health, Chapel Hill, NC, USA; Lineberger Comprehensive Cancer Center, University of North Carolina, Chapel Hill, NC, USA.
5 Clinton Foundation, New York, NY, USA; Mailman School of Public Health, Columbia University, New York, NY, USA.
6 Center for Infectious Disease Modeling and Analysis, Yale School of Public Health, Yale University, New Haven, CT, USA; Department of Epidemiology of Microbial Diseases, Yale School of Public Health, Yale University, New Haven, CT, USA.
7 The Immunization Partnership, Houston, TX, USA.
8 Center for Health Policy & Law, Northeastern University, Boston, MA, USA.
9 Department of Epidemiology of Microbial Diseases, Yale School of Public Health, Yale University, New Haven, CT, USA; Yale School of Nursing, Yale University, New Haven, CT, USA; Yale Institute of Global Health, Yale University, New Haven, CT, USA; Department of Internal Medicine (Infectious Diseases), Yale School of Medicine, Yale University, New Haven, CT, USA.
10 Department of Family and Community Health, University of Pennsylvania School of Nursing, and Center for Health Incentives and Behavioral Economics, University of Pennsylvania, Philadelphia, PA, USA.
11 Gulf States Health Policy Center, Bayou La Batre, AL, USA.
12 New York University Langone School of Medicine, New York University, New York, NY, USA.
13 Yale Institute of Global Health, Yale University, New Haven, CT, USA.
14 Department of Obstetrics & Gynecology, Emory University, Atlanta, GA, USA.
15 Stanford School of Medicine, Stanford University, Stanford, CA, USA.
16 Department of Health Policy, Stanford University, Stanford, CA, USA; Freeman Spogli Institute for International Studies, Stanford University, Stanford, CA, USA; Stanford Law School, Stanford University, Stanford, CA, USA.
17 Department of Pediatrics, University of Washington School of Medicine, Seattle, WA, USA; Treuman Katz Center for Pediatric Bioethics, Seattle Children's Research Institute, Seattle, WA, USA.
18 Institute for Vaccine Safety, Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA.
19 Department of Health Policy and Management, Yale School of Public Health, Yale University, New Haven, CT, USA.
20 Department of Health Policy and Management, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA.
21 Texas Children's Center for Vaccine Development, Departments of Pediatrics and Molecular Virology & Microbiology, National School of Tropical Medicine, Baylor College of Medicine, Houston, TX, USA; Department of Biology, Baylor University, Waco, TX, USA; Hagler Institute for Advanced Study, Texas A&M University, College Station, TX, USA; Scowcroft Institute of International Affairs, Bush School of Government and Public Service, Texas A&M University, College Station, TX, USA; James A Baker III Institute for Public Policy, Rice University, Houston, TX, USA.