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 WHO recommends Danish 1331 strain for vaccine production D Mantoux test becomes positive after 48 hours of vaccination 💡 Explanation Which of the following statements is true about BCG vaccination ? ✓ Correct Answer: C. WHO recommends Danish 1331 strain for vaccine production