The US Center for Disease Control and Prevention (CDC) makes it very clear on their website:
They even link to two studies to supposedly prove that point. However the studies do not support such a bold claim as the first states:
The committee finds that evidence convincingly supports a causal relationship between some vaccines and some adverse events—such as MMR, varicella zoster, influenza, hepatitis B, meningococcal, and tetanus-containing vaccines linked to anaphylaxis. Additionally, evidence favors rejection of five vaccine-adverse event relationships, including MMR vaccine and autism and inactivated influenza vaccine and asthma episodes. However, for the majority of cases (135 vaccine-adverse event pairs), the evidence was inadequate to accept or reject a causal relationship. Overall, the committee concludes that few health problems are caused by or clearly associated with vaccines.
Besides the MMR and autism This is where the godfather of vaccines, Stanley Plotkin, is forced to rationalize,
The main problem with these studies and the others that supposedly vindicate all vaccines with relationship to autism is that they have not looked at the difference between vaccinated and a fully unvaccinated population. When a study like that was conducted (The Mawson Study), it showed that vaccinated population were four times as likely to have autism. Granted, this study was considered a pilot study because of the small sample size, but the findings were statistically significant and presents a clear signal, raising the question of why this study hasn’t been duplicated on a larger scale.
The answer to that may be because the medical establishment may not like what they find in a vaccinated-versus-completely-unvaccinated study. Instead, they promote studies (like this Danish study) that focus on one vaccine (MMR) and claim that vaccines don’t cause autism because there was no correlation between MMR and the disorder even though subjects received other vaccines in the study. As the study author Anders Hviid said, “The idea that vaccines cause autism is still around despite our original and other well-conducted studies. Parents still encounter these claims on social media, by politicians, by celebrities, etc.” Hviid didn’t cite the other studies because there aren’t any. Safety studies for vaccinations on the CDC schedule have never included a true placebo group much less a group of completely unvaccinated subjects.
Moreover, these studies are just epidemiological and are subject to data manipulation (several data were inexplicably thrown out of the MMR study). If a vaccine or a series of vaccines cause autism, this should be shown in biological studies. As JB Handley has explained in How to End the Autism Epidemic, the science has been done and it points to vaccines as a contributor to the autism epidemic.
1: “Maternal Immune Activation” can cause autism. A study from 2007 saw an increased risk of autism in rodents:
Maternal immune activation (MIA) in pregnant rodents produces offspring with abnormalities in behavior, histology, and gene expression that are reminiscent of schizophrenia and autism, making MIA a useful model of the disorders…Here we show that the cytokine interleukin-6 (IL-6) is critical for mediating the behavioral and transcriptional changes in the offspring.
2. Administration of aluminium to neonatal mice in vaccine-relevant amounts is associated with adverse long term neurological outcomes. This study from 2013 showed that the aluminum adjuvant used in vaccines cause a similar immune activation as in the 2007 study but in newborn subjects as well.
3. Aluminum also produced autism-like behavior in sheep. A study from 2018 showed that sheep also react to aluminum adjuvants in a similar way:
Vaccine and adjuvant-only groups demonstrated significant changes in the interindividual and intragroup interaction patterns (ie, increase in wool biting and restlessness) as the cumulative number of injections increased. These findings coincide with previous observations on the ovine ASIA syndrome. Treatment groups also showed higher levels of stress biomarkers, and the clinicopathological picture as a whole showed few significant differences between these groups. These results will be published in detail elsewhere.
4. Hepatitis B vaccine, which includes the aluminum adjuvant, induces IL-6 in postnatal rats. A study from 2015 showed that the Hep B vaccine that is given to newborns within 24 hours of birth increases IL-6 cytokines , which were linked to autism in study 1 above.
5. Hep B vaccine increases autism in human boys. This study from 2008 showed an increased risk of autism in boys who received the hep B vaccine. It also showed a decreased risk of autism in girls, ironically.
6. People with autism have higher levels of aluminum in their brains. This study showed that people with autism have higher levels of aluminum in the brain:
These are some of the highest values for aluminium in human brain tissue yet recorded and one has to question why, for example, the aluminium content of the occipital lobe of a 15 year old boy would be 8.74 (11.59) μg/g dry wt.?
The evidence is mounting despite intense pushback from the pharmaceutical industry. It appears that vaccines—especially those with the aluminum adjuvant—create an immune activation and inflammation in the brain correlated with IL-6 cytokines. This brain damage during crucial developmental stages leads to autism spectrum disorder in some children. More science needs to be done, clearly, but it is safe to say that the CDC is wrong and that vaccines cause autism.