Two doses of candidate TB vaccine MVA85A in antiretroviral therapy (ART) naive subjects gives comparable immunogenicity to one dose in ART+ subjects by Dieye, T, Ndiaye, B, Dieng, AB, Fall, M, Brittain, N, Britain, N, Vermaak, S, Camara, M, Diop-Ndiaye, H, Ngom-Gueye, N, Diaw, P, Toure-Kane, C, Sow, P, Mboup, S, McShane, H