That might seem good in theory, but let us suppose that this virus has a 5% fatality rate (It may be lower than that, but I keep hearing different numbers. When I say 5%, that's because I'm using an approximate average of the different numbers that they keep putting out, so I'll be the first to admit that I may be wrong.).
That's a 1 in 20 chance of death.
So, what you're suggesting is to mix up one live round with 19 dummy rounds, load up a 20 round magazine (I have an aftermarket 20 round mag for my .40 Sig P226, for example), and put the muzzle in your mouth and pull the trigger . . . hoping that the live round isn't in the chamber.
Also, survivors of this disease may develop chronic health conditions from it. Having the flu can lead to Parkinson's disease later in life. Surviving genital warts can lead to cancer later in life. Catching the measles can wipe out your other immunities and force you to get revaccinated for everything after you recover. Catching either Hepatitis B and/or C (Hep C was formerly called "Non-A/Non-B" hepatitis) can lead to a particularly nasty and aggressive form of liver cancer.
And so on.
Please take these points into consideration before you hook up with people who have corona virus and start playing tonsil hockey or whatever it is that you'll do to contract it.
I'm not trying to be intensely critical, but my points come from a place of concern.