The Original Serial Killer

For over a year, we’ve been talking about serial killers and complaining about COVID. So this week we’re going to review Kelly‘s favorite serial killer. Now this isn’t a “normal” serial killer. It’s one we can’t visibly see without a microscope. You’ve probably heard of this killer, but don’t have a lot of info on it, so let’s jump right in and talk about Yersinia Pestits.