Vaccination Does Not Trigger Multiple Sclerosis.
Parents who oppose vaccinating their children to prevent infectious diseases have not yet discovered the literature linking vaccinations with multiple sclerosis. Happily, even if they do, it’s too late. The jury is in and the evidence is now irrefutable that vaccines do not cause MS.
Those of us of a certain age recall the swine flu vaccine in the 1970’s. It did lead to a slightly higher risk (1–2 cases per million vaccinated) of Guillain-Barre syndrome. Studies in MS have shown conflicting results and are often “underpowered.”
A new study is convincing. Researchers in Germany identified cases of MS (12,262), Crohn’s (19,296), psoriasis (112,292), and “no autoimmune disease” (79,185). They looked at the 5 years that preceded the diagnosis of MS. They found that those with MS were less likely to have had any vaccination: 23% less than the control group; 18% less than Crohn’s; and 13% less than psoriasis.
The opposite hypothesis may be true: in MS, vaccines could be protective.
See the editorial by Yeh and Graves in Neurology, August 27, 2019.
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