Mass surveillance of pediatric tuberculus exposure using dermal tuberculin reactivity as tracer

The cumulated number of pediatric tuberculus suspects were 1322 for seven year from 1995-2001 at Babylon province. These patients were tested at once with 2u tuberculin 0.1 ml intradermally injected to the suspects. Among the tuberculus suspects, tuberculin anergy was found of 42.2% and tuberculin allergic was 7.8% Vaccinees with well defined BCG scars were presenting 88.28% positive tuberculin. The annual incidence of tuberculin positive, were 1.49 - 21.69% with an overall percentage 7.71% The average season influence was showing high tuberculin reactive in hot than in cold months. The mean of the number of tuberculus foci in rural as well as citizen were of comparable incidence, during the study years