Does anyone know of any links or books that talk about a link between vaccinations and speech delays? My son (15 mos) went to the doctor today ( he has been vaccinated up to this point) I told my Ped that he only says "dada" and "nana" but nothing else. He wants him to be evaluated for mild expressive delay. He will respond to "commands" telling him to bring something etc but he's just not talking. Everything i've been able to pull up has said to this point that such delays are linked to autism.