How much time does it take for the finding shown below, after BCG vaccination?
Correct Answer: 6-12 weeks
Description: - BCG vaccine is administered at inseion of deltoid on left shoulder - to allow easy identification of its scar Changes after BCG vaccination: - Intradermal injection using 26G needle raises 5-7mm wheal - It occurs by following sequence of events Bacilli multiply - form a papule - by 1 week which enlarges to 4-8 mm Ulcerates - by 5-6 weeks Heals by scarring - by 6-12 weeks Route of administration : intradermal
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Pediatrics
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