American Journal of Public Health · 1974 · 89 citations · 13 references
A follow-up study of large scale tuberculin testing and vaccinating in Puerto Rico reveals that BCG vaccination had little overall effect in reducing the incidence of tuberculosis and did not reduce the severity of cases occurring among nonreactors.
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Community trials of BCG vaccination.
Carroll E. Palmer, L W SHAW, G W Comstock · PubMed · 1958 · 101 citations