it's a pnuemonia-esque disease that's primarily caused by bacterial infection. It has coughing, aches, shortness of breath, etc

THING IS

You can get it by breathing in contaminated air - particularly that with moisture.

..

AND GUESS WHAT HAPPENS WHEN YOU WEAR THE SAME MASK ALL DAY?

That's right, you're creating a portable micro-biome of moist air you're continually breathing right in front of your nose. It's a perfect breeding ground for bacteria!

And unlike doctors who dispose of their masks every few minutes (at most every hour) - you probably haven't washed that mask you're wearing within the past week.

It's like not changing your underpants ... but your underpants is on your face.