The Pittsburgh Steelers had a handful of players and coaches ultimately test positive for Covid-19 over the course of the season, including Stephon Tuitt, James Conner, and Vince Williams, as well as Vance McDonald and coaches Matt Canada and Danny Smith, but they never had a breakout as some other organizations did.
Nevertheless, they were the one team that most had their schedule interrupted by virus-related game delays. Their Week Four game against the Tennessee Titans was pushed back to a later week and their bye week—in the middle of the week—moved up to Week Four when said organization had an outbreak.