CDC - Reinfections and COVID-19

Reinfection with the virus that causes COVID-19 means a person was infected, recovered, and then later became infected again.

After recovering from COVID-19, most individuals will have some protection from repeat infections. However, reinfections do occur after COVID-19. We are still learning more about these reinfections. Ongoing studies of COVID-19 are helping us understand:

• How often reinfections occur
• Who is at higher risk of reinfection
• How soon reinfections take place after a previous infection
• The severity (how serious the infection is) of reinfections compared with initial (the first) infections
• The risk of transmission to others after reinfection

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