Do Vaccines Cause Acute Disseminated Encephalomyelitis (ADEM)?

Conclusion Older formulations of rabies vaccine did cause Acute Disseminated Encephalomyelitis (ADEM), but newer formulations of rabies vaccine have not been shown to cause ADEM, and rabies vaccine is not routinely recommended to the general population in the United States. Other vaccines that are currently routinely recommended to the general population in the U.S.* have […]

Do Vaccines Cause Guillain-Barré Syndrome?

Conclusion Influenza vaccines reduce the risk of influenza infection, which causes Guillain-Barré syndrome (GBS). Thus, influenza vaccines prevent GBS by protecting against natural influenza infection. However, influenza vaccines can very rarely cause GBS within 6 weeks of vaccination in adults, at an estimated rate of 1-3 cases per million vaccinations. Influenza vaccines have not been […]