Bears reportedly shut down Halas Hall due to COVID-19 concerns

According to various reports, the Bears have shut down Halas Hall due to concerns about the spread of COVID-19. The Chicago Tribune's Brad Biggs was the first to hint at coming issues, with The Athletic's Adam Jahns also reporting something similar:

Sounds like #Bears might have more COVID-19 issues than just OT Jason Spriggs, who tested positive, and RG Germain Ifedi, who has been sidelined because of close contact. Stay tuned to see what shakes out as the day progresses.
— Brad Biggs (@BradBiggs) November 5, 2020

There is apparently a very fluid situation at Halas Hall with the #Bears. I’m told everyone was sent home out of COVID-19 concerns. Stayed tuned for more
— Adam Jahns (@adamjahns) November 5, 2020