Colorado health officials investigating human case of bubonic plague
![Colorado health officials investigating human case of bubonic plague](https://media-cldnry.s-nbcnews.com/image/upload/t_fit_1500w/rockcms/2024-07/240710-colorado-plague-se-559p-a07421.jpg)
Colorado health officials are investigating a suspected case in a human of the plague, the rare bacterial infection is infamously known for killing tens of millions in 14th century Europe.