![scientists map how deadly bacteria evolved to become epidemic](https://utterbuzz.com/wp-content/uploads/2024/07/scientists-map-how-deadly-bacteria-evolved-to-become-epidemic-640x460.jpg)
Pseudomonas aeruginosa — an environmental bacteria that can cause devastating multidrug-resistant infections, particularly in people with underlying lung conditions — evolved rapidly and then spread globally over the last 200 years, probably driven by changes in human behavior, a new study has found.