The is enormous pressure to deny that vaccinations are causing autism, as such a revelation would result in political, legal, and financial consequences for those who have been supporting increases in vaccination. As researchers denied smoking caused lung cancer for decades, researchers now claim that vaccination is not causing autism.<ref>http://www.ama-assn.org/ama/pub/category/13703.html,</ref><ref>http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B75KN-4DJ97VJ-8&_user=10&_rdoc=1&_fmt=&_orig=search&_sort=d&view=c&_version=1&_urlVersion=0&_userid=10&md5=c555dd340aa6cb7c3a18806ba0fd162a</ref><ref>http://www.iom.edu/?id=27771</ref> Many parents who see first-hand the changes in their children immediately shortly after vaccination see a clear cause-and-effect, and some are opting out of vaccination.<ref>http://www.acsh.org/publications/pubID.425/pub_detail.asp</ref> | The is enormous pressure to deny that vaccinations are causing autism, as such a revelation would result in political, legal, and financial consequences for those who have been supporting increases in vaccination. As researchers denied smoking caused lung cancer for decades, researchers now claim that vaccination is not causing autism.<ref>http://www.ama-assn.org/ama/pub/category/13703.html,</ref><ref>http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B75KN-4DJ97VJ-8&_user=10&_rdoc=1&_fmt=&_orig=search&_sort=d&view=c&_version=1&_urlVersion=0&_userid=10&md5=c555dd340aa6cb7c3a18806ba0fd162a</ref><ref>http://www.iom.edu/?id=27771</ref> Many parents who see first-hand the changes in their children immediately shortly after vaccination see a clear cause-and-effect, and some are opting out of vaccination.<ref>http://www.acsh.org/publications/pubID.425/pub_detail.asp</ref> |