Vaccines are one of the most important inventions in modern medicine. They have saved countless lives and help to prevent the spread of deadly diseases. However, in recent years, a controversial topic has arisen in regards to vaccines. Some people believe that vaccines cause autism. This belief has been proven to be a misconception, but the idea still persists in some communities.

Busting the misconception of vaccines causing autism

What is Autism?

Autism is a neurological disorder that affects the way a person communicates and interacts with others. It is also known as Autism Spectrum Disorder, as there are several subtypes that are classified within this disorder. Autistic people may have difficulty with social interactions, communication, repetitive behaviors, and sensory sensitivities. Autism is a lifelong disorder, but with the right support, autistic people can lead fulfilling and successful lives.

Understanding Autism and its effects on individuals

The Origin of the Theory That Vaccines Cause Autism
The idea that vaccines cause autism can be traced back to a study published in 1998 by Andrew Wakefield. In this study, Wakefield claimed to have found a link between the MMR vaccine and autism. The study was flawed, however, and it was eventually retracted by the journal that published it. Further investigations showed that Wakefield had manipulated data and behaved unethically, eventually leading to him being struck off the medical register.

Despite Wakefield’s study being discredited, the rumor that vaccines cause autism still persists. The internet has become a breeding ground for anti-vaccine sentiment, and conspiracy theories abound. Celebrities, politicians, and even the President of the United States have all given credence to the notion that vaccines cause autism.

The Evidence That Vaccines Do Not Cause Autism

Numerous studies have been conducted to determine whether there is any link between vaccines and autism. None has found any evidence that vaccinations cause autism. One of the latest studies, conducted by the Annals of Internal Medicine in 2019, analyzed data from over 600,000 children, including those with siblings who had autism. The study found no link between the MMR vaccine and autism.

There have been other studies as well that found no link between vaccines and autism. In 2011, the British Medical Journal conducted an investigation that found that Wakefield’s study was not only flawed but was actively fraudulent. They discovered that Wakefield had manipulated evidence, and that his conclusions were not supported by the data.

Why the Misconception Persists

Despite overwhelming evidence to the contrary, the misconception persists that vaccines cause autism. One reason is that people remember sensational news stories better than they recall dry scientific studies. The Andrew Wakefield study became headline news, while the numerous studies that contradicted it were not as well-publicized.

Another reason is that people tend to be more persuaded by anecdotes than by data. A person who believes that vaccines caused their child’s autism may become a vocal advocate against vaccinations, even if there is no scientific evidence to support their claim. These stories fuel anti-vaccine sentiment, as they are shared on social media, and are given a platform by celebrities and other public figures.

The Risks of Not Vaccinating

The dangers of not vaccinating are significant. When a large number of people in a community are vaccinated, it creates herd immunity. This means that even if a few people are not vaccinated, the disease cannot spread easily in the population. However, when fewer and fewer people are vaccinated, herd immunity is weakened, making it easier for diseases to spread.

In recent years, there has been a resurgence of diseases that were once virtually eradicated, such as measles and mumps. This can be attributed to the decrease in vaccination rates due to the fear surrounding vaccines. Not vaccinating not only puts the unvaccinated person at risk but also puts others in the community who are unable to get vaccinated at risk, such as people who are immunocompromised.


The idea that vaccines cause autism is a misconception that has persisted despite overwhelming evidence to the contrary. It originated from a study that was shown to be fraudulent, but the rumor continued to spread. Not vaccinating can put people at risk and make it easier for diseases to spread. The best way to protect oneself and the community is to get vaccinated.


  • Annals of Internal Medicine
  • British Medical Journal

Further reading

  • The Vaccine Book: Making the Right Decision for Your Child – by Robert W. Sears, MD
  • The Panic Virus: A True Story of Medicine, Science, and Fear – by Seth Mnookin

By Peter

4 thoughts on “The Misconception That Vaccines Cause Autism”
  1. Vaccines not only protect ourselves but also the community by creating herd immunity, which is weakened when fewer people get vaccinated.

    1. Thank you for acknowledging the importance of vaccination in creating herd immunity. It is essential for the well-being and health of the entire community.

  2. It’s important to note that not only does the misconception that vaccines cause autism put individuals at risk, but there can also be community consequences. As mentioned, not vaccinating can lead to a decrease in herd immunity, which can result in the spread of deadly diseases among those who can’t get vaccinated due to medical reasons. It’s crucial for individuals to get vaccinated, not only for their own health but for the health of their community as well.

    1. Thank you for your comment. You raise an important point about the community consequences of not vaccinating. It’s essential to consider the impact our choices have on others and to prioritize the health and well-being of everyone in our community.

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