In this article, the Hepatitis B vaccine was related to autism. Studies were done to show the increase of autism in the past twenty years and its relation, if any, to the HepB vaccine. When the data was recorded from children, they were eight years old in years 1992, 1994, and 1996, children in the years of ’92 and ’94 had approximately the same results. They were 1 out of every 166 in 1992 and 1 out of every 150 in 1994. The numbers for the 1996 cohort have not been published yet, but it is estimated that the number of children with autism will drastically increase (1 in 100). The facts presented in this study make a lot of sense to me. While researchers say that they are positive that MMR and DPT vaccines do not lead to autism, HepB shows potentially different results. From the groups in 92, 94, and 96, the amount of hepatitis B vaccines given slowly increased in each period from 8%, 27%, and 82% respectively. In my eyes, these results make a lot of sense and although it has not been proven yet, you can definitely make an inference.
It is already known that the HepB vaccine can cause side effects, including “central nervous system inflammatory demyelination.” This affects the transport of signals in your body to and from your brain. Hypothetically, this makes sense in regards to autism.
I also think that it is very interesting that boys who received the HepB vaccine in their first month of life had a 2.94% greater chance of being diagnosed with autism compared to those that received it later on or not at all. Unlike other vaccines that are being accused of causing autism, arguments for the causation of HepB are much stronger and closer to being validated, and I agree that there is a significant amount of data to make a strong argument of their case.
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