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Hepatitis B Vaccine Connected to MS

The BBC news reported on September 14, 2004 on a study done at the Harvard School of Public Health, that showed a three-fold boost in the incidence of Multiple Sclerosis (MS) linked to Immunization by the vaccine used for hepatitis B. The BBC article begins by plainly stating, "People who are vaccinated against hepatitis B have an increased risk of MS, a study shows."
Images of a syringe The study looked at hepatitis B immunization patterns among 163 patients with MS and compared it to 1604 control patients without MS from the same database. The results clearly showed a link involving the vaccine and MS.

The article notes that the Harvard researchers are not aware of why there is an apparent statistical link. They observe that the Harvard researchers are unable to determine whether the vaccine causes MS in those susceptible to the disease or increases MS in those destined to have it. One of the researchers, Dr Miguel Hern stated, "We estimated that immunization against hepatitis B was connected with a three-fold boost in the incidence of MS within 3 years following vaccination." The conclusion of the study sates, "These findings are in conjuction with the hypothesis that immunization with the recombinant hepatitis B vaccine is associated with an elevated risk of MS, and challenge the concept that the relation between hepatitis B vaccination and risk of MS is well understood. "

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