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Abstract
• In our locality BCG vaccine induces tuberculin reaction of less than 15 mm; most of the reactions are below 10 mm. reaction between 10 and 15 mm should be interpretated with caution since one child with reaction 10-15 mm was acontact of active TB case.
• BCG vaccine success rate is 84.3% if we consider BCG induced scar and 50.7% if we consider positive TST. However 49.3% of our studied children was tuberculin negative.