
These rare side effects usually appear within six weeks of receiving a vaccine dose. Serious side effects that could cause long-term health problems are extremely unlikely after any vaccination, including COVID-19 vaccination. (WCSC) - If you think you have had a reaction to the COVID-19 vaccine, hospitals in the Lowcountry say reporting this to a. These side effects go away in a few days.


Adverse events following immunization (AEFI)Īdverse events following immunization (AEFI)Īn adverse event following immunization (AEFI) is an unwanted or unexpected health event that happens after someone receives a vaccine (it may not be caused by the vaccine). Database tracking side effects to COVID-19 vaccine. Centers for Disease Control and Prevention, facing a Freedom of Information Act lawsuit seeking a vast trove of data about the safety and side-effects.
