摘要：A survey was carried out in certain parts of India to determine the prevalence of nonspecific tuberculin sensitivity. In the temperate zone, villages situated 1 200 m or more above mean sea level showed a markedly lower prevalence than villages in the plains did. In the tropical zone, the prevalence of nonspecific sensitivity was high. The prevalence of infection due to Mycobacterium tuberculosis was much lower than that of nonspecific sensitivity and the rates did not vary greatly in the areas surveyed. Full text Full text is available as a scanned copy of the original print version. Get a printable copy (PDF file) of the complete article (658K), or click on a page image below to browse page by page. Links to PubMed are also available for Selected References . 273 274 275 276 277 278
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