What are the adverse reactions of newborns being vaccinated with BCG?

Patient's question:

No

Doctor's answer:

Localized hardening, redness, and fever. If the child has a cold and fever, vaccination is not allowed, as it may affect the immune response, worsen vaccine side effects, and cause allergic reactions. It is acceptable to delay vaccination by a few days after the cold has improved. Generally, delaying by a few days will not affect the immune response. Do not worry. Wishing the baby a healthy growth.