Tanzania: TB vaccine for HIV shows promise

Researchers have reported results of a clinical trial showing that a new vaccine - Mycobacterium vaccae (MV) - is effective in preventing tuberculosis in people with HIV infection. The DarDar Health Study, named for Dartmouth and Dar es Salaam, Tanzania, found that MV immunization reduced the rate of definite tuberculosis by 39 percent among 2,000 HIV-infected patients in Tanzania.