#AskTheExpert Hi doctor! My son is 40 days old , which vaccine is better , some say the vaccine which gives a fever for the next three days is effective and painless is less effective .Can you pls advise . Thanks in Advance.

A. both are equally good, it's ur choice.Painful' and a ‘Painless'. It is basically whole-cell and acellular vaccine respectively. When the baby is given the whole-cell vaccine, he or she develops fever, pain, and redness around the spot of injection, while in acellular form, which contains fewer antigens pose no such side effects. As a result, they lower the pain that your infant might experience.