Notes


A.O., A.D., I.N., N.B., J.M.K., A.B.T., S.D. Y.L., I.M., J.O., J.K.T., T.G., M.P., L.P.J., S.B.S., and M.B.K. have no competing interests to declare. KMN is on the World Health Organization Strategic Advisory Group of Experts on Immunization (SAGE).