The Black Plague

The time is the black plague (where a desease spreads rapidly and kill people easily because nobody knew what germs were) plague doctors are everywhere and people are becoming sick, some people are getting mad that the plague doctors are failing them so they try to intentionally get people sick by touching them and hurting them, and sometimes kill people who are immune (you get to choose who you are, how your situation is, location, if you're sick/not sick/ immune)