From the Proceedinhgs of the NAS this week, quoted in 'Science', is an article on the genetic study of people with TB. The study showed that specific strains of TB transmitted most effectively within genetically similar population groups, and that the effectiveness of BCG is more apparent among genetically linked populations. A fascinating study which may lead to changes in the future treatment and prevention of TB.
Ref: Proc. Natl. Acad. Sci. U.S.A. 103, 2869 (2006).
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