Hello, my son is 6 years old and we moved to India last year. Due to the current pendamic we have missed his vaccine which was scheduled after completion of the age 5 years. However, as per the system being followed at middle east he has taken all the vaccination at the age of 3years. Sometimes he complains for pain in legs. My question is - is this pain due to delay in vaccine? Can we take this 5 years scheduled vaccine now, if there is any unforseen delay, is this harmful? Please suggest.