![]() The risk of relapse was not associated with the use of any of the vaccines studied (i.e., hepatitis B, tetanus and influenza vaccines).Īdditional well-controlled studies also found that influenza vaccine did not exacerbate symptoms of multiple sclerosis. The second study included 643 patients with a relapse of symptoms of multiple sclerosis occurring between 19 identified from the European Database for Multiple Sclerosis. There was no association between receiving the hepatitis B vaccine or the number of doses of hepatitis B vaccine and the risk of multiple sclerosis. The first study evaluated 121,700 nurses followed from 1976 and 116,671 nurses followed from 1989 to identify 192 women with multiple sclerosis and 645 matched controls. Two large studies evaluated whether the hepatitis B vaccine causes multiple sclerosis or whether hepatitis B, tetanus or influenza vaccines worsen symptoms of multiple sclerosis. ![]() ![]() The capacity of vaccines to either cause or exacerbate multiple sclerosis has been evaluated in several excellent studies. ![]()
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