back in 2020. a microcosm. they had lots of testing, lots of measures. in some way you get an idea what all the measures we have been talking about would look like in a small community. here's what we found. >> the nfl is postponing three games due to covid-19 issues around the league. >> just like the rest of the country, omicron hit the nfl hard. >> things that we had thought that we really understood all of a sudden turned upside-down overnight. >> throughout the pandemic, i've been checking in with nfl chief medical officer, dr. allen sills. i wanted to understand how the league is riding the waves of this virus. >> i think last time we spoke you talked about the most common scenarios for the virus to transmit. we're eating, meeting, greeting. >> same with omicron, or did that change things? >> i think what was different with omicron is so much easier to transmit. one described it as almost a fog