Wakefield's claims
Andrew Wakefield thinks that MMR could cause autism by triggering a whole series of events in the body which start when the measles virus attacks and damages the child's bowel.
In a nutshell, he believes that persistent measles infection damages the lining of the bowel making it 'leaky'. Certain toxins, produced by digestion, which are normally destroyed by chemicals in the gut, are able to pass across the bowel lining and into the blood supply.
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