oa South African Medical Journal - Annual risk of tuberculosis infection in the Transkei - problems connected with its estimation from the data of a tuberculin survey



The tuberculin and X-ray survey undertaken in the Transkei by the State Health Service, SANTA, and the Tuberculosis Research Unit of the South African Medical Research Council was used for a study of the prevalence of tuberculous infection in children from 3 months to 15 years old.


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