{"title":"[Prevalence of mycobacterial infection in school children of Rio de Janeiro city (author's transl)].","authors":"E D Madeira, P P Gontijo Filho","doi":"","DOIUrl":null,"url":null,"abstract":"<p><p>Skin-test were performed in 226 students, 12 to 14 years old, in a Rio de Janeiro elementary school using PPD-Rt23, PPD-G210 and PPD-B. The differential tuberculin test using these three antigens showed that 24,3% of the children presented a stronger reaction for non-tuberculous mycobacterial tuberculins than to PPD-Rt23, suggesting that infections with such organisms may occur. A high proportion (74,5%) showed the strongest reaction with PPD-G210 and probably this antigen is the most interesting to be used simultaneously with PPD-Rt23. Children with the largest tuberculin reaction to PPD-Rt23 represented 27,4% of the total. This group consists of individuals who have had a tuberculous infection. The third group (48,3%) provided evidence for a heterogeneous sensitization with the tubercle bacillus and at least one atypical mycobacteria.</p>","PeriodicalId":21265,"journal":{"name":"Revista brasileira de pesquisas medicas e biologicas","volume":"11 6","pages":"337-44"},"PeriodicalIF":0.0000,"publicationDate":"1978-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Revista brasileira de pesquisas medicas e biologicas","FirstCategoryId":"1085","ListUrlMain":"","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
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Abstract
Skin-test were performed in 226 students, 12 to 14 years old, in a Rio de Janeiro elementary school using PPD-Rt23, PPD-G210 and PPD-B. The differential tuberculin test using these three antigens showed that 24,3% of the children presented a stronger reaction for non-tuberculous mycobacterial tuberculins than to PPD-Rt23, suggesting that infections with such organisms may occur. A high proportion (74,5%) showed the strongest reaction with PPD-G210 and probably this antigen is the most interesting to be used simultaneously with PPD-Rt23. Children with the largest tuberculin reaction to PPD-Rt23 represented 27,4% of the total. This group consists of individuals who have had a tuberculous infection. The third group (48,3%) provided evidence for a heterogeneous sensitization with the tubercle bacillus and at least one atypical mycobacteria.
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