Background: Accurate intradermal administration of the Bacillus Calmette–Guérin (BCG) vaccine is essential to ensure adequate protection against tuberculosis (TB) in neonates. Incorrect technique can compromise immunization efficacy and increase the risk of local adverse reactions. Objective: To assess baseline adherence to the recommended BCG vaccination technique among healthcare personnel and to evaluate the impact of a structured training program on improving technique accuracy Methods: A prospective interventional clinical audit was conducted in the Department of Paediatrics at Dr. N. D. Desai Faculty of Medical Science and Research, Nadiad, Gujarat, India. The audit comprised pre- and post-training phases. In the baseline phase, 18 neonates receiving the BCG vaccine were observed for correct injection site, dose, needle use, and visible wheal formation. This was followed by a hands-on training workshop for nursing staff and postgraduate medical trainees. Post-training observations were conducted over two weeks in 70 neonates. Statistical analysis included descriptive statistics and chi-square testing. Results: Prior to the training intervention, only 27.7% (5/18) of the observed vaccinations met all criteria for correct technique, specifically visible intradermal wheal formation. Following the training program, adherence improved significantly to 87% (61/70) (p < 0.001). Correct injection site and dosage compliance remained at 100% throughout both phases. Conclusion: A focused, one-day training session significantly enhanced adherence to proper intradermal BCG vaccination technique among healthcare workers. Implementation of periodic refresher training and structured audit cycles is recommended to sustain high standards in immunization practices.

BCG vaccination, clinical audit, intradermal injection, neonatal immunization, tuberculosis prevention, healthcare quality improvement.