[1] Univ Cape Town, Ctr Lung Infect & Immun, Lung Inst, Cape Town, South Africa
[2] Univ Cape Town, South African Med Res Council, Ctr Study Antimicrobial Resistance, Cape Town, South Africa
[3] Univ Cape Town, Inst Infect Dis & Mol Med, Dept Integrat Biomed Sci, Cape Town, South Africa
[4] Baylor Inst Immunol Res, Dallas, TX USA
[5] London Sch Hyg & Trop Med, Fac Infect & Trop Dis, Dept Immunol & Infect, London, England