Fauci says people should wear masks forever, even after vaccination

Dr. Anthony Fauci thinks people should wear a mask — even if they are vaccinated — forever. 

Getting vaccinated and wearing a mask is "not an either/or," the National Institute of Allergy and Infectious Diseases director told ABC's Jonathan Karl on Sunday. "You can do both and should do both."

Karl asked the chief White House medical adviser if he agreed with Gov. Jared Polis (D-Colo.), who decided not to reinstitute a state mask mandate despite climbing COVID-19 numbers.

While Fauci agreed with the governor that COVID-19 is becoming a "crisis of the unvaccinated," he still supports wearing a mask, even if a person is fully vaccinated.