I've had the bug twice. 2nd time around was about 8 weeks ago and pretty mild. 1st time was pre-lockdown. That said, today I had a call about an audition for a band on Tuesday and brought it up. For the folks in the band, they are ok either way. But it's a good idea to bring it up and find out what the expectations are up front.
If some of the band members have opinions, use that to guide your decision.
I'd feel terrible, but due to not having a spleen, I would have to knock you back. There's factors around it. It's not just necessarily an opinion. Not only could I easily catch it (probably a death sentence), I could easily give it to ya.