Study: Vaccinations not a risk factor for MS

August 02, 2019
A new study shows that five years before their diagnosis, MS patients were statistically less likely to receive vaccinations than comparator groups. The researchers found no link between vaccinations and the development of MS.

Vaccinations are often mentioned as a possible risk factor for MS. Scientists from the Technical University of Munich and the Bavarian Association of Statutory Health Insurance Physicians analyzed a large KVB dataset representative of the general population. The data covered more than 200,000 individuals, including more than 12,000 MS patients. 

The researchers found that five years before being diagnosed, individuals who went on to develop MS had received fewer vaccinations than those who did not develop MS. This applied to all the vaccines investigated: those against pneumococci, meningococci, mumps, measles, rubella, chickenpox, human papilloma virus, hepatitis A and B, tick-borne encephalitis and influenza. The effect was particularly pronounced in the latter three cases: the control group had received significantly more vaccinations than the individuals who later developed MS.

The researchers said that given the large volume of data analyzed, they can conclusively state that there is no evidence that recent vaccination increases the likelihood of MS or the onset of an initial MS episode.

The study was published in Neurology, the medical journal of the American Academy of Neurology.

MS Focus Lending Library


Books, DVDs, and CDs are available for loan, by mail across the United States.
Learn more

Study uncovers potential risks of common MS treatment


Study finds an increased risk of events such as stroke, migraine, and depression, and abnormalities in the blood with taking beta interferon for MS.
Learn more