Add Yahoo as a preferred source to see more of our stories on Google. A biologist leads a team for a prairie dog project to combat fleas with oral medication. Prairie dogs and other rodents have kept ...

Pneumonic plague occurs when plague bacteria enter the lungs. It is the only form of plague that can spread between people. Symptoms may include headache, fever, and rapidly developing pneumonia.

Septicemic plague is a complication of pneumonic or bubonic plague and can also occur independently. It develops when bacteria that cause plague multiply in the blood. The bacteria enter the ...

Plague doesn't just loom large in history—it still exists today. California health officials recently confirmed that a South Lake Tahoe resident has tested positive for plague, likely after being ...