Not sure why you were downvoted, but the black plague analog is essentially a false equivalency because medical protocol and medicine were nowhere where we are now.

With proper isolation and antibiotics, it is kept in check and not nearly as deadly assuming you are smart enough to know when something is wrong with you.

Instead, they put people together, didn't replace (and burn) infected materials, boils burst on people, etc.

There's a reason why the bubonic plague is essentially a non issue today, and it's not because it was deleted from existence after all.