All Vaccine Adverse Event Reporting System articles
-
NewsIn rare cases, autoantibodies can cause severe reactions to a live-attenuated virus Chikungunya vaccine that has been discontinued in the U.S.
A new study shows that preexisting autoantibodies in a small subset of the population can allow weakened vaccine viruses to escape control, explaining some adverse events tied to one kind of Chikungunya vaccine, which is no longer available in the U.S.