A newly developed evidenced denies the causal relationship between vaccination of measles, mumps and rubella and the onset of autism.
The Guardian: No link between autism and MMR, affirms major study
There have been debates about the adverse effects of vaccination. Most of the claims suggesting the health risk of vaccination lack evidence, in my sense. Therefore, this result published recently is not surprising at all. But, it is essential to prove scientifically a fact that has been consistent with clinician's common sense.
On the other hand, autism is a heterogeneous illness. There is no decisive etiology to explain the onset of autism. It means several hypotheses are still allowed to be considered. Thus, it is theoretically possible that exposure to some kind of chemical substance would raise the risk of the onset of autism.
In general, autism is deemed as a congenital disease. Therefore, it is unlikely that a particular treatment such as vaccination in their childhood is a cause of autism. On the other hand, autism becomes apparent in early childhood. Parents often think their early nurturing is so bad to make their child autistic. More complicated, there are some other illnesses caused by environmental issues which are often misidentified as autism.
Anyway, scientific consideration and critical thinking are important for better support to children at risks. At present, MMR vaccination is beneficial for a child's health far more than the risk.
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