Social & Preventive Medicine Which of the following statements is true about BCG vaccination – A Distilled water is used as diluent for BCG vaccine B The site for injection should be cleaned thoroughly with spirit C Mantoux test becomes positive after 48 hours of vaccination D WHO recommends Danish 1331 strain for vaccine production 💡 Explanation Which of the following statements is true about BCG vaccination - ✓ Correct Answer: D. WHO recommends Danish 1331 strain for vaccine production