Retrospective assessment of the effectiveness of BCG vaccination against tuberculosis using the case-control method.

@article{Smith1982RetrospectiveAO,
  title={Retrospective assessment of the effectiveness of BCG vaccination against tuberculosis using the case-control method.},
  author={Peter G Smith},
  journal={Tubercle},
  year={1982},
  volume={63 1},
  pages={
          23-35
        }
}
It is proposed that case-control studies might be used to assess the effect on the incidence of tuberculosis of the mass BCG vaccination campaigns that were conducted in many countries in Africa and Asia from the 1950s onwards. The cost of such studies would be relatively small and they could be completed within a year or two. The results would assist countries in planning their future strategies for tuberculosis control and information on the variation in the protective effect of BCG in a… CONTINUE READING
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