As the first Covid-19 vaccine doses roll out across the country, a question is circulating among scientists and public-health experts: Should people who have already had the virus consider deferring vaccination? Medical professionals say even if you’ve had COVID-19, getting the vaccine may help prevent reinfection and lower your risk of getting sick again.

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Last week the first shipments from Pfizer Inc. and BioNTech SE made their way to health-care workers at facilities across the country. The Moderna  vaccine received emergency use authorization from the U.S. Food and Drug Administration and began shipping doses over the weekend.

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The Centers for Disease Control and Prevention (CDC) has not made an official recommendation on whether people who’ve recovered from COVID-19 should be vaccinated.

People who have had COVID-19 may still benefit from a vaccine because we don’t know how long immunity lasts after you get better.

The vaccines weren’t specifically tested on people who had recovered from COVID-19, so it’s unclear what the side effects would be in this population.

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