My daughter is 3 and half month old. One pneumococcal and meningitis vaccine has been given to her. Paediatrician has advised to go for one booster vaccine for it. Is it necessary to go for a booster? And is it a mandatory vaccine. Since this vaccine cost Rs 3300 for one time .Plz also advise mandatory vaccines for which I must go for my daughter. My paediatrician has given me long list of vaccines age wise for my daughter whose expenses is too much. please advise me which vaccines should I go for my daughter and how many boosters needed for it.