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Discussion and Debate
Discussion and Debate
Physical & Life Sciences
Are vaccines the major cause of Autism?
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<blockquote data-quote="sfs" data-source="post: 65797723" data-attributes="member: 8727"><p>That only works if the families that do and don't get vaccines are drawn from the same population, meaning having both the same genetics and the same environments (including medical care, disease exposure, exposures to toxins, etc, etc). Avoiding ascertainment bias is important and difficult in this kind of study. Really. </p><p></p><p>That could work, since the number of vaccinations is probably known. Flu vaccines are only a small part of total vaccinations, however, and it might be difficult to pick out a signal if there were one. Especially if there are any causal factors varying at the same time (e.g. the only cause for autism that seems to be pretty well established is certain viral infections in the mother during pregnancy.)</p></blockquote><p></p>
[QUOTE="sfs, post: 65797723, member: 8727"] That only works if the families that do and don't get vaccines are drawn from the same population, meaning having both the same genetics and the same environments (including medical care, disease exposure, exposures to toxins, etc, etc). Avoiding ascertainment bias is important and difficult in this kind of study. Really. That could work, since the number of vaccinations is probably known. Flu vaccines are only a small part of total vaccinations, however, and it might be difficult to pick out a signal if there were one. Especially if there are any causal factors varying at the same time (e.g. the only cause for autism that seems to be pretty well established is certain viral infections in the mother during pregnancy.) [/QUOTE]
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Are vaccines the major cause of Autism?
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