SPM – MCQ 10 – Which is true of BCG vaccination ?

Which is true of BCG vaccination ?
A. Distilled water is used as diluent for BCG
B. The site of injection should be cleaned with spirit
C. Mantoux test becomes positive after 48 hours of vaccination
D. WHO recommends Danish 1331 strain for vaccine production

Correct answer : D. WHO recommends Danish 1331 strain for vaccine production

Normal saline is used as a diluent. Site of injection should be cleaned with normal saline. Mantoux test becomes positive after 8 weeks.

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