My husband just took our 27 mo old son to the doctor to have something checked out and while he was there the doctor told him our son was due for his MMR & Hep vaccines. They said it appeared he had missed them looking at his shot card. So, my husband went ahead and had him get the shots. In actuality, what happened is when he had those shots the shot card was not updated. So, now he has had these shots twice in 9 mos.