Letters to the Editor

Indian Pediatrics 2002; 39:881

Reply

Thank you for your comments on our paper. Regarding the cut off point for Tuberculin test; as already given in the paper the cut-off point was taken from the reference mentioned(1). This document clearly states: "For epidemiological purposes or tuberculin surveys in community there exists a standard criteria for every country when to read test result as positive. For our country it is as follows:

Size of induration with 1 TU PPD

< 10 mm : Negative

10mm : Borderline

>10 mm : Positive.

We agree to the point raised by you that Tuberculin testing may not be a good way of assessing vaccine response.

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References

1. Seth V. Tuberculin test. In: Essentials of tuberculosis in children. Ed. Seth V., New Delhi, Jaypee Brothers, 1997 pp 48-57.