Is there a higher incidence of TB among contacts? What is the role of contact tracing under RNTCP?
Ans: Though relative risk of acquiring infection and developing TB is higher among contacts, the case yield from contact tracing is low. However, the risk of breakdown is maximum during the period immediately following infection, especially among children. Therefore, all child contacts and symptomatic adult contacts of smear positive cases, irrespective of the duration of symptoms should be examined at the health centre, to identify and treat TB cases and to provide preventive treatment to children.
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