The face mask that could end the pandemic

Biden, who calls wearing masks "a patriotic act," signed an executive order Wednesday -- his very first as President -- to ask Americans to wear masks of their choice for the first 100 days of the new administration. The executive order also requires mask use on all federal property, though in this case, not just any old mask will do.

Link: https://www.cnn.com/2021/01/22/health/face-mask-n95-coronavirus-transmission/index.html