Which is true about BCG?
d. WHO recommends Danish 1331 for vaccine production(Ref: IAP Guidebook on Immunization 2013-14; pg 113-117, Nelson's 20/e p 3212, Ghai, 8/e p 190-191)Discussing about the options one by one,Option aFalse; Sterile normal saline may be used as diluent for BCGOption bFalse; For BCG Vaccination, the selected site may be swabbed clean using sterile saline and local antiseptics should be avoidedOption cFalse; Of BCG vaccine recipients whose initial tuberculin skin test is negative, 10%-25% will have a positive tuberculin skin test if they are retested within 1-4 weeks--the so-called "booster phenomenon"Option dTrue; The two common strains of for use in BCG vaccine are Copenhagen (Danish 1331) and Pasteur
Distilled water is used as diluent
Site for injection is cleaned with spirit
Mantoux test positive in 6 weeks
WHO recommends Danish 1331 for vaccine production
Immunization