Dr. Anthony Fauci, the infectious-disease expert who works as President Joe Biden’s chief medical advisor, recently said in a new round of tweets that you will need to wear a face mask even if you get the COVID-19 vaccine.

  • “Currently, we do not have enough data to be able to say with confidence that the vaccines can prevent transmission. So even if vaccinated, you may still be able to spread the virus to vulnerable people. Masks are vital until we learn more & significantly reduce infections,” he said in a tweet for the White House COVID-19 Response Team account.
  • “We are still learning about this new virus. Right now, the virus evolves as it circulates unchecked through the global population. We don’t know what will happen once we reach a level of herd immunity, but vaccines may need to be updated periodically as the virus evolves.”
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Masks have long been considered a preventative measure to stop the spread of COVID-19. According to The Mayo Clinic, “Face masks combined with other preventive measures, such as frequent hand-washing and social distancing, help slow the spread of the virus.”

What about vaccines?

The COVID-19 vaccines surely prevent severe illness from COVID-19. But it’s unclear how long protection will last, or how well it prevents people from spreading the virus to others, according to Business Insider.

A recent study found that the University of Oxford and AstraZeneca COVID-19 vaccine slows the transmission of the coronavirus, as I wrote for the Deseret News.