Medicine: Boost for TB Vaccine

Doctors disagree sharply on the value of vaccination against tuberculosis with BCG, the Bacillus of Calmette and Guéerin (TIME, Sept. 23). Nearest approach to a consensus is that BCG is not to be recommended for people enjoying high standards of sanitation and health, but may be good for those with low resistance, living in overcrowded conditions, and those exposed to TB victims. Now the results of a long-term experiment show how effective the vaccine can be. In the Archives of Internal Medicine, three University of Pennsylvania researchers report striking benefits among American...

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