Hepatitis B Vaccine May Be Linked to MS
Findings of Threefold Increased Risk Contradict Most Previous Research
By Salynn Boyles
Source: WebMD Medical News
Reviewed By Brunilda Nazario, MD
September 13, 2004
Sept. 13, 2004 --The hepatitis B vaccine series has been administered to more than 20 million people in the U.S. and more than 500 million people in the world. It is more than 95% effective in preventing an infection that kills millions annually. However anecdotal evidence has linked the vaccine to an increased risk for multiple sclerosis.
Now a new study in the Sept. 14 issue of the journal Neurology offers the some of the strongest evidence supporting the link.
In the study, researchers report that vaccination with the recombinant hepatitis B vaccine is associated with a threefold increased risk of multiple sclerosis.