• If I've Had COVID-19, Do I Still Need Two Doses of Vaccine?

    1 month ago - By Time

    While there are three safe and effective vaccines authorized in the U.S. to protect against COVID-19, there's still a lot about vaccine immunity that researchers are still trying to figure out. One question has to do with the millions in the U.S. who have been infected with SARS-CoV-2 and recovered. Do they have natural immunity because of their infection, and if so, do they still need to get vaccinated? How much additional protection do the vaccines give them?
    In a study published April 1 in Nature Medicine , researchers led by a team at Cedars-Sinai Medical Center report that people who...
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