The annual risk of tuberculous infection in the eastern zone of India
Chadha, V.K.; Kumar, P; Gupta, J; Jagannatha, P.S.; Lakshminarayana, Dr.; Magesh, V; Jameel, A; Sanjay, S; Srivastava, R.K; Prasad, N and Vaidyanathan, P.S (2004) The annual risk of tuberculous infection in the eastern zone of India. The International Journal of Tuberculosis and Lung Disease, 8 (5). pp. 537-544.
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A community-based, cross-sectional tuberculin survey was conducted among children aged 1–9 years residing in a sample of rural and urban areas. Stratified two-stage cluster sampling was adopted for selection of rural and urban clusters. A total of 40 964 children in 515 clusters underwent tuberculin testing and reading with 1TU PPD RT23 with Tween 80; the maximum transverse diameter of induration was measured about 72 h after the test.
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