the nba, nhl and nfl also postponing games. and the nfl now changing its testing protocols. no longer requiring testing of asymptomatic fully vaccinated players. covid striking maryland governor larry hogan and members of congress with massachusetts senator elizabeth warren, new jersey senator cory booker, and colorado congressman jason crow all testing positive for the virus. >> right now you need that third dose. i wish we could call it a booster. it is a three-dose vaccine. >> reporter: and with doctors reminding us that basic mitigation measures like masking could help stop the spread. washington, d.c. is reinstating a indoor mask order only lifted at the end of november. d.c. is experiencing the lieist case council since pandemic began. the new order will be if place starting tuesday, december 28th, lasting through the end of january. victor. >> athena jones, thank you so