This debate is all over the place. The medical field says that there is no proof. The other side says how can the numbers keep getting higher now 1 in 88. My oldest diagnosed at 2. You wouldn't believe the pressure our doctor tried putting on us when we told him we are holding off giving it to our youngest. Thankfully the RN pulled us aside and said wait until 3, he is not in daycare and not being exposed to other children so wait it out. He is not showing signs and we are going to wait. Anyone else with the same experience or opinions on the subject?