system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
Vaccines that must be given before age of two years according to IAP are all of the following EXCEPT?
assistant
The correct answer is  Vaccine Recommended age of vaccination (1st dose) a. Varicella vaccine 15 months b. MMR vaccine 9 months c. Conjugated typhoid vaccine 9 months d. Pneumococcal polysaccharide vaccine Beyond 2 yrs age - As polysaccharides stimulate B-cells independent of T-cells, the pneumococcal polysaccharide is poorly immunogenic at <2yrs age & immunological memory is low - Hence, it is recommended beyond 2yrs of age.