Do fighters take any precaution against sickness?

I would be walking around with a mask and keep away from public places and walk around with sanitizer especially if you're part of a big money fight

When you're consistently working out your immune system goes up.

Very good question. I've wondered that myself.

John Molina had to stay away from his family for a week as they had a cold and his fght is next week.

With a big fight looming, how do fighters prevent from catching the flu or some other sickness that can be passed? You would think extra precautions are taken, during training camp but I never heard anything like that. Do they? Don't hang around sick people. GGG got the flu a few days before the Rosado fight