Following vaccines are pending for our son, age: 1 year 5 months 15th months schedule vaccine as per the vaccine chart mmr2s, varicella 1, pcv booster 16th to 18th months schedule: dtap b1, ipv b1, hib b1 recently we have changed the paediatrician for our baby hence here are my queries cited below for your kind suggestions 1: new paediatrician was saying that she would like to give following vaccines (mmr2, varicella 1, pcv booster) one per month rather than 3 in one go whereas our previous paediatrician went for all in a single go in many such occasion where there was more than 1 vaccine hence which one is ideal and safe for our baby 2: for mme 2 shall we go advise our doctor to give same brand like previous same category mmr 1, brand name: tresivac 3: for pcv booster shall we advise doctor to give previous brand i.e prevenar 13 like previous pcv 1 to 3 4: for dtap b1, ipv b1, hib b1 shall we advise doctor to give same. Brand hexamim which was given during dtap, ipv & hib 1 to 3.