Question
What adverse reactions might occur after newborns are vaccinated with BCG?
Answer
After vaccination with BCG, newborns may experience local hardness, swelling, and fever. If a child has a cold or fever at the time of vaccination, it is not recommended to administer the vaccine, as this may affect the vaccine’s immune efficacy and exacerbate side effects, even triggering an allergic reaction. It is advisable to wait until the child recovers from the cold before vaccination, as delaying the vaccination by a few days typically does not affect the immune response. Parents should not worry too much; wish the baby a healthy growth.