Which of the following is not true about the Tuberculin test

Which of the following is not true about the Tuberculin test –

A. It is only tool available for estimating the prevalence of TB in a community

B. Induration of 10 mm indicates a positive test

C. It is a specific test

D. New cases occur more commonly in patients who are tuberculin reactors

Correct Answer: It is a specific test

Description: The validity of tuberculin test is subject to variability. It is limited by lack of specificity Reference; Park&;s Textbook of preventive and social medicine, 24th edition.Pg no. 196

Category: Social & Preventive Medicine

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