[1] Univ N Carolina, Inst Global Hlth & Infect Dis, Chapel Hill, NC USA
[2] Duke Univ, Sch Med, Duke Human Vaccine Inst, Durham, NC USA
[3] Univ Alabama Birmingham, Birmingham, AL USA
[4] Univ Oxford, Weatherall Inst Mol Med, Oxford, England
[5] Univ Oxford, Natl Inst Hlth Res, Biomed Res Ctr, Oxford, England