Natural immunity due to COVID-19 infection provides strong protection against reinfection and serious illness for several months after initial infection, but immunity wanes over time, a new study has ...

People can develop temporary natural immunity after recovering from COVID-19. However, vaccines are the best way to train the immune system to recognize viruses. When a vaccinated person encounters ...

A new study published in the New England Journal of Medicine is backing up claims that natural immunity provides greater protection from COVID-19 infection than multiple vaccine doses. “Natural ...

In a recent study published in the New England Journal of Medicine researchers conducted a national epidemiological survey to determine the seropositivity against severe acute respiratory syndrome ...

Editor's note: Find the latest COVID-19 news and guidance in Medscape's Coronavirus Resource Center. Seroprevalence surveys suggest that from the beginning of the pandemic to 2022, more than a third ...

Largest review and meta-analysis assessing the extent of protection following COVID-19 infection by variant and how durable that protection is against different variants, including 65 studies from 19 ...

Raise your hand if you had a COVID vaccination and also got COVID. I see those hands. If you got COVID after you got the shot, usually you hear that you didn’t get a really bad case of COVID because ...

The science on the durability of immunity from a COVID-19 infection isn’t clear. Experts recommend getting a vaccine for added protection. Dr. Anthony Fauci, director of the National Institute of ...