[1] Kingsway Hosp, Amanzimtoti, Kwa Zulu Natal, South Africa
[2] Groote Schuur Hosp, Dept Med, Div Pulmonol, Cape Town, South Africa
[3] Groote Schuur Hosp, Dept Med, UCT Lung Inst, Cape Town, South Africa
[4] Univ Cape Town, Cape Town, South Africa
[5] Univ Witwatersrand, Chris Hani Baragwanath Acad Hosp, Div Pulmonol, Johannesburg, South Africa
[6] Univ Witwatersrand, Fac Hlth Sci, Johannesburg, South Africa
[7] Morningside Mediclin, Johannesburg, South Africa
[8] Durban Univ Technol, Enhancing Care Fdn, Kwa Zulu Natal, South Africa
[9] Busamed Gateway Private Hosp, Kwa Zulu Natal, South Africa
[10] Stellenbosch Univ, Dept Med, Div Pulmonol, Cape Town, South Africa
[11] Tygerberg Hosp, Cape Town, South Africa
[12] Univ Cape Town, Ctr Lung Infect & Immun, Div Pulmonol, Dept Med, Cape Town, South Africa
[13] Univ Cape Town, UCT Lung Inst, Cape Town, South Africa
[14] Univ Cape Town, South African MRC UCT Ctr Study Antimicrobial Res, Cape Town, South Africa
[15] London Sch Hyg & Trop Med, Dept Infect Biol, Fac Infect & Trop Dis, London, England
[16] Louis Pasteur Private Hosp, Pretoria, South Africa
[17] Mediclin Pretoria Heart Hosp, Pretoria, South Africa