#AskTheExpert hai sir, my son is 11 months old now. we have done all the vaccines which has to be given before 1 year to our sin in govt hospital. but there they have not given flu vaccine, typhoid vaccine, HEP A1 and varicella. few people are saying that these vaccines are must but few are telling that these are not mandatory. pls suggest should the above vaccines are mandatory and if yes we have crossed the time limit for above vaccines can we make it now.