In an article discussing whether to excercise while ill (generally not; it won’t help, will infect others, and sometimes make you worse, the article advises, but says Mayo Clinic says it’s ok to expose your gym to a head cold—let’s hope there’s no one there with leukemia or on anti rejection medication), Abstract of article is here https://www.tandfonline.com/doi/abs/10.1080/15438629609512057
Source : https://www.webmd.com/cold-and-flu/heart-disease-and-flu#1 If I get the flu or even a heavy cold I'll stay at home. And if I do venture out I'd prefer not to meet people with colds and flu. It might not have made much difference to me when I was 25, but now I'm getting long in the tooth I'd rather avoid the sufferers if at all possible.
It should be common knowledge (at least amongst athletes it is) never to train during an infection, especially not during the flu! It is well-known that the possibility of having a myocarditis is relatively high.
Following a month bedridden with a viral infection and myocarditis, I was encouraged by my doctor to try exercise as much as possible. If only I had just rested...
