<i>The problem is that there have been no studies made regarding vaccine and autism...(A study that takes populations of vaccinated children and unvaccinated children and compares their autism rates) No studies are available, and years later, that remains true.</i><p>Simply false. Here are studies which compare children given MMR to control children given no MMR vaccines. Both find no statistically significant correlation between MMR vaccine and autism:<p><a href="http://journals.lww.com/pidj/Abstract/publishahead/Lack_of_Association_Between_Measles_Mumps_Rubella.99421.aspx" rel="nofollow">http://journals.lww.com/pidj/Abstract/publishahead/Lack_of_A...</a><p><a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0003140" rel="nofollow">http://www.plosone.org/article/info:doi/10.1371/journal.pone...</a><p>There are also temporal studies comparing autism rates over time after the reduction/removal of thimerosal from vaccines (disproving a narrower hypothesis, that thimerosal causes autism):<p>Hviid A, M Stellfeld, J. Wohlfahrt, and M Melbye (2003). Association between thimerosal-containing vaccines and autism. JAMA 290:1763-1766.<p>Madsen KM, MB Lauritsen, CB Pedersen, P Thorsen, AM Plesner, PH Andersen, PB Mortensen (2003). Thimerosal and the Occurrence of Autism: Negative Ecological Evidence From Danish Population-Based Data. Pediatrics 112:604-6.<p>Fombonne E, R Zakarian, A Bennett, L Meng, D. McLean-Heywood (2006). Pervasive Developmental Disorders in Montreal, Quebec, Canada: Prevalence and Links With Immunizations. Pediatrics 118:e139-50.<p>Fombonne E (2008). Thimerosal disappears but autism remains. Arch. Gen. Psychiatry 65: 15-6.