10/28/2021 | Press release | Distributed by Public on 10/28/2021 05:38
Possible Side Effects
In the arm where you got the shot:
Throughout the rest of your body:
These side effects happen within a day or two of getting the vaccine. They are normal signs that your body is building protection and should go away within a few days.
Fainting After Vaccination
Fainting (syncope) and other events that may be related to anxiety like rapid breathing, low blood pressure, numbness, or tingling can happen after getting any vaccine. Although uncommon, these events are not unexpected, and they are generally not serious.
According to information from the Vaccine Adverse Event Reporting System (VAERS), there were 653 reports of fainting events (fainting and near-fainting) among nearly 8 million doses of J&J/Janssen COVID-19 Vaccine administered in the United States in March and April 2021. This translates to a rate of about 8 fainting events for every 100,000 doses of the J&J/Janssen COVID-19 Vaccine given. These events occurred during the recommended 15-minute wait after vaccination. It's not clear at this time whether these events were associated with the vaccine or with anxiety, possibly related to preexisting concerns some people who chose to get the one-dose J&J/Janssen COVID-19 Vaccine may have about needles or shots.
By comparison, the rate of fainting after flu vaccination in 2019-2020 was 0.05 per 100,000 doses.
Other Authorized and Recommended COVID-19 Vaccines in the United States
You should get a COVID-19 vaccination as soon as possible. Do not wait for a specific brand. All currently authorized and recommended COVID-19 vaccines are safe and effective, and CDC does not recommend one vaccine over another.
Safety Data Summary