National Institute of Allergy and Infectious Diseases head Dr. Anthony Fauci said Sunday on ABC\u2019s \u201cThis Week\u201d that Americans who have been vaccinated need to \u2026<\/b>
\nNational Institute of Allergy and Infectious Diseases head Dr. Anthony Fauci said Sunday on ABC\u2019s \u201cThis Week\u201d that Americans who have been vaccinated need to continue wearing masks to protect others from spreading coronavirus. Anchor George Stephanopoulos said, \u201cWe don\u2019t know a lot about how vaccines affect transmission, whether they truly prevent transmission. For people who have been vaccinated, what can they do?\u201d Fauci said, \u201cWell, you should still be careful, George, that you could conceivably have, because the endpoint of the vaccine efficacy trial is preventing symptomatic disease, which means that potentially theoretically, and maybe, in reality, you\u2019re going to have infection that you don\u2019t get any clinical manifestation, you could be protected from disease and still have the virus, and if that\u2019s the case that\u2019s the reason why you hear all the public health officials say, wear a mask. The reason is, essentially, to protect other people, you may inadvertently infect someone else even though you\u2019re protected. That\u2019s the reason.\u201d<\/p>\n