[l0ner]

They simply need masks to protect their patients. They can never be sure that they themselves are not infected, and they treat a lot of severly ill (non COVID-19) patients in hospitals. If they spread the virus, those patients are at very high risk.

[jjeaff]

If that were true, all the medical professionals in America would already be infected.

Proper use of PPE very much decreases your chances of infection.