Wikipedia is already referencing articles saying it’s a pathogen related to the Black Death.

And for people worried about it, the World Health Organization (WHO) says that “today it can be easily treated with antibiotics and the use of standard preventative measures.”

I think it’s important to watch the clip that this headline of Mandy Patinkin is referencing to be able to appreciate the fuller context of this meme. Unfortunately, this meme is vague enough to confuse people comparing what Seinfeld said with what Patinkin said. Patkin also does an amazing throw back to Princess Bride to make his point too! https://youtu.be/dFjOb9DGS1w