My general rule of thumb is: if you have a fever, flu, anything that is contagious- stay home.
You think you are developing a bug but you are well enough to go to mass- please abstain from the wine.
You are no longer contagious but you are just getting off whatever you have- please abstain from the wine.
I say this because people have different immune systems and it is best to protect them from whatever you have.
The exception to the rule of abstaining from the wine would be if you had a health condition that wasn’t transmittable through the saliva or sharing the same cup.
There are times when we need to show our love to our brothers and sisters and the way we do this is by being practical.