Q: I’ve read that there can be side effects to the COVID-19 vaccine. What are they?
Michael Shea, MD, Intensivist & Chief Medical Director, Maui Health: The Food and Drug Administration has released the COVID-19 vaccines under an emergency use authorization, and the vaccines are being distributed across the country. Studies found that these vaccines are 94 to 95 percent effective at preventing COVID-19 after two doses.
Some people have reported minor, short-lived side effects from the vaccine. The most common reported side effect has been a reaction around the injection site, including pain, redness, warmth or mild swelling.
Other common side effects include short-term fatigue, headache and muscle pain. These symptoms are usually mild. A smaller number of people reported temporary chills or a low fever. Side effects tended to be worse after the second dose of the vaccine.