[1] Univ Cape Town, Fac Hlth Sci, TB Proof, ZA-7925 Observatory, South Africa
[2] Univ Cape Town, Fac Hlth Sci, Sch Publ Hlth & Family Med, Room 4-46,Level 4,Falmouth Bldg,Hlth Sci Campus, ZA-7925 Observatory, South Africa
[3] Univ Stellenbosch, Dept Paediat & Child Hlth, Paediat Infect Dis, Cape Town, South Africa
[4] Wits Hlth Consortium, Resp & Meningeal Pathogens Unit, Johannesburg, South Africa
[5] Sarawak Gen Hosp, Clin Res Ctr, Kuching, Malaysia
[6] UCL, Div Infect & Immun, London, England
[7] Univ Coll London Hosp, NIHR Biomed Res Ctr, London, England