{"id":15343,"date":"2025-11-20T12:19:05","date_gmt":"2025-11-20T18:19:05","guid":{"rendered":"https:\/\/www.voicesforvaccines.org\/?post_type=jtf_topics&#038;p=15343"},"modified":"2025-11-21T12:21:59","modified_gmt":"2025-11-21T18:21:59","slug":"what-are-the-facts-on-autism","status":"publish","type":"jtf_topics","link":"https:\/\/www.voicesforvaccines.org\/es\/jtf_topics\/what-are-the-facts-on-autism\/","title":{"rendered":"What are the facts on autism?"},"content":{"rendered":"<div class=\"wpb-content-wrapper\">[vc_row source=&#8221;&#8221; text=&#8221;Clinical Trials&#8221; font_container=&#8221;tag:h2|text_align:left&#8221; use_theme_fonts=&#8221;yes&#8221; google_fonts=&#8221;font_family:Abril%20Fatface%3Aregular|font_style:400%20regular%3A400%3Anormal&#8221; link=&#8221;&#8221; css=&#8221;.vc_custom_1708910874436{border-top-width: 1px !important;border-right-width: 1px !important;border-bottom-width: 1px !important;border-left-width: 1px !important;}&#8221;][vc_column][vc_row_inner][vc_column_inner][vc_custom_heading text=&#8221;The Claim:&#8221; font_container=&#8221;tag:h3|text_align:left&#8221; use_theme_fonts=&#8221;yes&#8221;][vc_column_text css=&#8221;&#8221;]Changes to the CDC &#8220;Vaccines and Autism&#8221; web page have people concerned that vaccines might be related to the causes of autism. Let&#8217;s talk about the facts.[\/vc_column_text][\/vc_column_inner][\/vc_row_inner][vc_row_inner][vc_column_inner][vc_custom_heading text=&#8221;The Facts:&#8221; font_container=&#8221;tag:h3|text_align:left&#8221; use_theme_fonts=&#8221;yes&#8221;][vc_column_text css=&#8221;&#8221;]The main issue with the CDC&#8217;s new statement is that it gets the scientific process backwards. Science begins with a hypothesis or a question and conducts multiple experiments to see if they can come up with the same answer over and over again. There are some important parts of this process that the new web page ignores:<\/p>\n<ol>\n<li>Science cannot prove a negative. If someone asked the question &#8220;Can pigs fly?&#8221; scientists could come up with experiments to observe whether or not a pig could fly. The scientific, technical answer would probably be &#8220;Evidence does not exist to support the hypothesis that pigs can fly.&#8221; But that doesn&#8217;t mean that pigs can fly. They can&#8217;t. The statement simply accurately describes the evidence.<\/li>\n<li>If scientists wanted to proclaim that pigs can fly, they would need to provide proof that pigs can fly. Saying that no studies say that they do not fly is not proof that they can fly. It&#8217;s only\u00a0misunderstanding the science.<\/li>\n<li>Scientists know that not all studies are good studies, and they do not need to consider or take into account poorly done studies. Let&#8217;s say someone conducted a survey by sending out a survey out via social media, asking people if they have ever seen a pig fly. This study would have a lot of problems, the least of which is who would decide to take the survey. Scientists would not need to include this study in discussions about flying pigs.<\/li>\n<\/ol>\n<p>Instead of following the evidence, the rewritten CDC web page has decided it wants to frame vaccines for causing autism, so it is warping the evidence to fit that conclusion. They have violated every rule of science.<\/p>\n<h2 class=\"null\"><strong>The evidence about autism:<\/strong><\/h2>\n<p>Do pigs fly? No. Do vaccines cause autism? No. But how do we know that?<\/p>\n<p>Studies show that autism is mostly caused by genetics and starts very early, even\u00a0<a href=\"https:\/\/www.npr.org\/sections\/health-shots\/2014\/03\/26\/294446735\/brain-changes-suggest-autism-starts-in-the-womb\" target=\"_blank\" rel=\"noopener\" data-saferedirecturl=\"https:\/\/www.google.com\/url?q=https:\/\/voicesforvaccines.us6.list-manage.com\/track\/click?u%3De17a65409cd8f13ba7e58cc97%26id%3Dba8865a22d%26e%3Dfc0735be13&amp;source=gmail&amp;ust=1731887310907000&amp;usg=AOvVaw3RaDd1u4PMEAzyUCJ06Rpr\">before a baby is born<\/a>. The brain differences seen in people with autism begin during early development in the womb, not because of vaccines or anything that happens later.<\/p>\n<p>Unfortunately, the web page misrepresents many studies we have discussed before:<\/p>\n<ul>\n<li>The\u00a0<a href=\"https:\/\/autismsciencefoundation.org\/wp-content\/uploads\/2019\/03\/vaccine.2019.pdf\" target=\"_blank\" rel=\"noopener\">study<\/a>\u00a0from Denmark looked at more than 650,000 children born between 1999 and 2010 to see if the measles-mumps-rubella (MMR) vaccine was linked to autism. It found that whether or not a child was diagnosed with autism was not at all related to them receiving or not receiving the MMR vaccine. The web page makes it sound like vaccines in Denmark are different, but\u00a0<a href=\"https:\/\/en.ssi.dk\/vaccination\/the-danish-childhood-vaccination-programme\" target=\"_blank\" rel=\"noopener\">Danish kids<\/a>\u00a0and American kids get the same MMR vaccines at very similar times.<\/li>\n<li>The\u00a0<a href=\"https:\/\/commed.vcu.edu\/IntroPH\/Communicable_Disease\/2012\/adverseffectsVaccines.pdf\" target=\"_blank\" rel=\"noopener\">IOM study<\/a>\u00a0states that there is &#8220;insufficient evidence&#8221; to accept or reject specific hypotheses about vaccines and autism.\u00a0In systematic reviews like this, the label \u201cinsufficient evidence\u201d does not mean a hypothesis\u00a0is just as likely to be true as any other explanation. This phrase is often used because some conditions are very rare or have too few cases to study, not because researchers see warning signs or think the hypothesis might be correct.<\/li>\n<li>The IOM study clearly states:\u00a0\u201cThe evidence favors rejection of a causal relationship between MMR vaccine and autism.\u201d The MMR does not cause autism.<\/li>\n<\/ul>\n<p>The web page also builds in doubt about the entire childhood vaccine schedule causing autism, suggesting that kids today get too many vaccines. But that doesn&#8217;t line up with what has actually happened with autism rates and vaccine development:<\/p>\n<ul>\n<li>Autism diagnoses kept increasing from\u00a0<a href=\"https:\/\/www.aafp.org\/pubs\/afp\/issues\/2011\/0301\/p515.html\" target=\"_blank\" rel=\"noopener\">2000 to 2020<\/a>, even though most major childhood vaccines were introduced back in the\u00a0<a href=\"https:\/\/www.chop.edu\/vaccine-education-center\/science-history\/vaccine-history\/developments-by-year\" target=\"_blank\" rel=\"noopener\">1980s and 1990s<\/a>, and only smaller changes were made to the schedule after 2000..<\/li>\n<li>Autism affects 1 out of every 36 children in the United States. In\u00a0<a href=\"https:\/\/worldpopulationreview.com\/country-rankings\/autism-rates-by-country\" target=\"_blank\" rel=\"noopener\">other countries<\/a>, autism rates are about 1the same or higher,\u00a0even though their vaccine schedules are different from the U.S. schedule and often include\u00a0<a href=\"https:\/\/www.folkhalsomyndigheten.se\/the-public-health-agency-of-sweden\/communicable-disease-control\/vaccinations\/vaccination-programmes\/\" target=\"_blank\" rel=\"noopener\">fewer shots<\/a>\u00a0for young children.<\/li>\n<\/ul>\n<h2 class=\"null\"><strong>What&#8217;s important to know about autism:<\/strong><\/h2>\n<p>Autism isn&#8217;t a tragedy. Autistic people deserve a world that accepts them and can accomodate them. That doesn&#8217;t mean parenting an autistic child is easy. We certainly do not do enough to support parents in general, much less parents of neurodivergent children.<\/p>\n<p>Incorrectly tying vaccines to autism harms autistic people. They can be subjected to phony treatments or harmful ableism. And autistic children deserve to the protection of vaccination.[\/vc_column_text][\/vc_column_inner][\/vc_row_inner][\/vc_column][\/vc_row]\n<\/div>","protected":false},"excerpt":{"rendered":"<p>CDC changes raised new autism-vaccine fears, but science is clear: vaccines don\u2019t cause autism. Learn how real research works and what the evidence shows.<\/p>\n","protected":false},"parent":0,"template":"","jtf_topic_subjects":[195,199,218],"class_list":["post-15343","jtf_topics","type-jtf_topics","status-publish","hentry","jtf_topic_subjects-autism","jtf_topic_subjects-childhood-vaccines","jtf_topic_subjects-vaccine-safety","entry","no-media"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.voicesforvaccines.org\/es\/wp-json\/wp\/v2\/jtf_topics\/15343","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.voicesforvaccines.org\/es\/wp-json\/wp\/v2\/jtf_topics"}],"about":[{"href":"https:\/\/www.voicesforvaccines.org\/es\/wp-json\/wp\/v2\/types\/jtf_topics"}],"version-history":[{"count":1,"href":"https:\/\/www.voicesforvaccines.org\/es\/wp-json\/wp\/v2\/jtf_topics\/15343\/revisions"}],"predecessor-version":[{"id":15344,"href":"https:\/\/www.voicesforvaccines.org\/es\/wp-json\/wp\/v2\/jtf_topics\/15343\/revisions\/15344"}],"wp:attachment":[{"href":"https:\/\/www.voicesforvaccines.org\/es\/wp-json\/wp\/v2\/media?parent=15343"}],"wp:term":[{"taxonomy":"jtf_topic_subjects","embeddable":true,"href":"https:\/\/www.voicesforvaccines.org\/es\/wp-json\/wp\/v2\/jtf_topic_subjects?post=15343"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}