No. None of the authorized vaccines contain the live virus that causes COVID-19, so they cannot give you COVID-19.

After receiving a COVID-19 vaccine, you may have some side effects, which are normal signs that your body is building protection. Side effects are typically mild to moderate, occur within the first 3 days beginning the day of the vaccination, and resolve within 1-2 days of onset. Some people have no side effects. Common side effects on the arm where you received the shot include pain, redness, and swelling. Throughout the rest of your body, you may feel tiredness, headache, muscle pain, chills, fever, and nausea. For more information, please see the CDC's  Possible Side Effects After Getting a COVID-19 Vaccine.

Health experts and scientists have been monitoring the presence and significance of various genetic strains of the SARS-CoV-2 virus since the beginning of the pandemic. Scientists are still working to better understand how widespread the latest variants of interest are and their impacts on existing therapies, vaccines, and tests.

Early research indicates that the currently available vaccines provide a level of protection from COVID-19 disease, but the full impact is still being evaluated. Learn the latest about variants from CDC.

Yes. Once they have completed their isolation period, people previously infected with COVID-19 may receive the vaccine. According to the CDC, people appear to become susceptible to reinfection after more than 90 days from the time they were initially infected. Reinfection appears to be rare during the first 90 days after someone was infected with COVID-19.

No. COVID-19 vaccines to not change or interact with your DNA in any way. The vaccines teach our bodies how to protect against future COVID infections. Learn more about how the vaccines work from the CDC.