People who receive vaccines may experience a number of side effectssuch as a sore arm, fever, fatigue, chills, nausea, and body aches — especially after the second dose of one of the two-dose regimens. This is a sign that the immune system is reacting and is not a cause for concern. The CDC recommends taking a painkiller after not before getting the shot and exercising the arm to avoid soreness. The side effects are generally more intense after the second shot, as the immune system reacts to the known spike protein.

There are some rare serious side effects, such as anaphylaxis — a life-threatening, but treatable, allergic reaction. In the United States, this reaction has occurred in about two to five people per million vaccinated and has not resulted in any deaths. The CDC requires that vaccinated people stay at the vaccination site for observation for at least 15 minutes after getting the shot in case they do have a negative reaction. We want to make sure that the public knows that we want these vaccines to be both safe and effective.

As people with underlying conditions — particularly older individuals — receive a vaccine, heart attacks or strokes will happen and could be coincidental. More than half of the clinical trial participants were followed for safety outcomes for at least four months after the second dose. Overall, approximately 12, recipients have been followed for at least 6 months. The most commonly reported side effects by those clinical trial participants who received Comirnaty were pain, redness and swelling at the injection site, fatigue, headache, muscle or joint pain, chills, and fever.

The vaccine is effective in preventing COVID and potentially serious outcomes including hospitalization and death.

COVID vaccines are free and available to anyone who wants one. We work with partners such as clinics, pharmacies and health departments to provide accurate and up-to-date information about vaccination services in your area. But if you do become sick after getting vaccinated, your illness will likely be significantly less serious.

Zero cases of serious illness requiring hospitalization. Seek medical care if you have chest pain, shortness of breath or feelings of having a fast-beating, fluttering or pounding heart within a week of getting the vaccine. Moderna Side effects Injection site pain, fatigue, headache, muscle pain, chills, joint pain, fever, nausea, feeling unwell and swollen lymph nodes Note: Rarely, some people have had heart problems after getting a mRNA COVID vaccine.

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