Heat coach Erik Spoelstra said Bosh also missed the team's morning shootaround after calling in from home to alert the training staff that he was dealing with flu-like symptoms.
Bosh is the sixth key member of the rotation to be stricken with some strain of the virus, with LeBron James, Dwyane Wade, Udonis Haslem and Mike Miller all missing either practice time or game action with the illness. Heat reserve center Josh Harrellson will also miss Saturday's game.
"I think the flu hit every single one of our guys, and most of the staff, at some point," Spoelstra said during Saturday's pregame session with the media. "(Bosh) called in and we told him to stay at home. I was hoping he might (play) ... come back tonight and feel better. But I should have known better because everybody else who has missed a shootaround (before), they did not make it back (to play)."
Spoelstra said he was still considering what adjustments he would make to the starting lineup and rotation. One likely option would be to start center Joel Anthony and continue to play Haslem at power forward.
But without Bosh, and even seldom-used Harrellson, an already small Heat team will be without two low-post options in a game against the Jazz, who are one of the league's biggest, deepest and most aggressive teams in the frontcourt.
Bosh had played in all 23 games this season, and has averaged 18 points, 7.9 rebounds and 1.7 assists in 33.2 minutes.