The BCG vaccine contains a live but weakened form of Mycobacterium bovis. The vaccine is used to prevent tuberculosis, and works by stimulating the body's immune response to the bacteria, without actually causing the disease. This Letter considers BCG in relation to HIV and TB infections.
Vaccine (2007) 25 (36) 6565-6568 [doi: doi:10.1016/j.vaccine.2007.06.045]
BCG and HIV reconsidered: Moving the research agenda forward.