[1] Natl Inst Med Res, MRC, Div Immunoregulat, London NW7 1AA, England
[2] Natl Inst Med Res, MRC, Div Mycobacterial Res, London NW7 1AA, England
[3] Imperial Coll Healthcare NHS Trust, St Marys Hosp, Dept Resp Med, London W2 1NY, England
[4] Univ Cape Town, Inst Infect Dis & Mol Med, ZA-7925 Observatory, South Africa
[5] Univ London Imperial Coll Sci Technol & Med, Wright Fleming Inst, Div Med, London W2 1PG, England
[6] ANRS Ctr Human Vaccines, INSERM, U899, Baylor Inst Immunol Res, Dallas, TX 75204 USA
[7] Baylor Hlth Care Syst, Inst Hlth Care Res & Improvement, Dallas, TX 75206 USA
[8] Imperial Coll Healthcare NHS Trust, St Marys Hosp, Dept Radiol, London W2 1NY, England
[9] Univ Texas SW Med Ctr Dallas, Dallas, TX 75390 USA
[10] Nationwide Childrens Hosp, Ctr Vaccines & Immun, Res Inst, Columbus, OH 43205 USA