Epidemic marker of TB ?
Ans. is 'a' i.e., Sputum AFB Positivity rateCase finding tool of choice for TB is suptum microscopy 4 sputum AFB positivityCase finding tools in TB are :?Sputum microscopyIt is the method of choice.Sputum cultureIt is 2" in impoance (after sputum microscopy) in a case finding programme.Mass miniature radiographyIt has been stopped as a general measure of case finding.4) Tuberculin testIt is of little value as a case finding tool as it has no diagnostic value.The number of bacilli seen in a smear reflects disease severity and patient infectivity.Therefore, it is impoant to record the number of bacilli seen in each smear.
Sputum AFB positivity rate
Tuberculin test positivity rate
Chest x-ray positivity rate
None of the above