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I’ve Already Had COVID-19. Do I Need the Vaccine?

September 17, 2021


You should get a COVID-19 vaccine, even if you have already had COVID-19. Research has not yet shown how long you are protected from getting COVID-19 again after you recover from COVID-19. COVID-19 vaccinations also help protect you even if you’ve already had the virus.


Evidence is emerging that people get better protection by being fully vaccinated compared with having COVID-19. One study showed that unvaccinated people who already had COVID-19 are more than two times as likely than fully vaccinated people to get COVID-19 again. Learn more about why getting vaccinated is a safer way to build protection than getting infected. If you were treated for COVID-19 with monoclonal antibodies or convalescent plasma, you should wait 90 days before getting a COVID-19 vaccine. Talk to your healthcare professional if you are unsure what treatments you received or if you have more questions about getting a COVID-19 vaccine.


Experts are still learning more about how long vaccines protect against COVID-19 in real-world conditions. CDC will keep the public informed as new evidence becomes available. To learn more, visit https://www.cdc.gov/coronavirus/2019-ncov/vaccines/prepare-for-vaccination.html