Information has been received from a consumer concerning her child, with a history of ear infections, who in approximately 8/99, at the age of 1 year, was vaccinated with the first dose of MMR. There was no concomitant medication. Two to three weeks post vaccination, the reporter stated that the patient stopped eating, his mannerisms changed and he started to display a disability where he lost language and did not say any new words other than what he already knew prior to the shot. In addition, the patient started talking again at 3 years old and started saying more words at 5 years old. The reporter stated that she is afraid to give him the second dose, but the board of education says that he has to have it. The patient still doesn't speak like he's suppose to and she strongly believes that the shot did this to him. The patient received lead testing and food testing and the results were normal. The patient was treated with intense speech therapy. The reported feels that it is definitely a disability, because he cannot talk, but she would not say that it is incapacitating. The patient sought unspecified medical attention. Additional information has been requested.  Follow up on 10/27/2003: "Initial and follow-up information has been received from a nuse and consumer concerning a child, with a history of ear infections, who on 08/31/1999, at the age of 1 year, was vaccinated with the first dose of MMR (lot number not available).  There was no concomitant medication.  "Two to three weeks" post-vaccination, the reporter stated that the patient "stopped eating, his mannerisms changed and he started to display a disability where he lost language and did not say any new words other than what he already knew prior to the shot".  In addition, the patient "started talking again at 3 years old and started saying more words at 5 years old."  The reported stated that "she is afraid to give him the second dose, but the Board of Education says that he has to have it."  The patient "still doesn't speak like he's supposed to and she stronly believes that the shot did this to him."  The patient received "lead testing" and "food testing" and the results were "normal".  The patient was treated with intense speech therapy.  The reported "feels that it is definitely a disability, became he cannt talk, but she would not say that it is incapacitating."  The patient sought unspecified medical attention.  Upon follow-up the nurse reported that the child was seen in the office on 08/25/2003 and at that time the mother did not want the child to receive the second dose of MMR.  On 09/24/2003, the child was seen in the office again and had a blood titer drawn which revealed low measles titer.  On 10/03/2003, the child was seen in the office and received a second dose of MMR (Lot # 645621/0271N).  The nurse did not have much information about the child because he was only seen in the office a few times in 1998 and 1999.  The last time the practice saw the child prior to the 08/25/2003 office visit was in February 1999 as the child was being seen in another practice.  The nurse stated that the mother's pregnancy was uncomplicated and that the child was full-term weighing 7 pounds 15 ounces.  In addition, she stated the child had been diagnosed with an "expressive language delay" and that he was in a developmental program named "TOTS".  Upon internal medical review, expressive language delay was considered to be an other important medical event.  Additional information has been requested.