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the Department of Biostatistics, University of Washington, Seattle (T.R.F.); the Department of Biostatistics, University of Florida, Gainesville (I.M.L.); the Nuffield Department of Population Health, University of Oxford (R.P., V.B.), and the Oxford Vaccine Group, Department of Paediatrics, University of Oxford and National Institute for Health Research Oxford Biomedical Research Centre (M.D.S.), Oxford, and the Global Health Programme, Chatham House (D.L.H.), and the Coalition for Epidemic Preparedness Innovations (J.P.C.), London \u2014 all in the United Kingdom; the Howard College School of Law, University of KwaZulu-Natal, Durban (J.A.S.), and the Wits Reproductive Health and HIV Institute, Johannesburg (H.R.) \u2014 both in South Africa; the Dalla Lana School of Public Health, University of Toronto, Toronto (J.A.S.); the Clalit Research Institute, Innova..."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ira M.","family":"Longini","sequence":"additional","affiliation":[{"name":"From the Office of Vaccines Research and Review, Center for Biologics Evaluation and Research, Food and Drug Administration, Silver Spring, MD (P.R.K., M.G.); 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