A person in Arizona recently died of pneumonic plague—a rare and severe form of the disease. An expert explains how the bacteria that spurred the Black Death centuries ago continues to claim lives

Arizona's Coconino County, near Flagstaff, has reported a pneumonic plague death, its first since 2007. The Arizona resident, who suffered a severe lung infection caused by the Yersinia pestis bacterium,

A rare respiratory illness known as pneumonic plague killed one Arizona resident. Know signs and symptoms and treatments to take in the event when you contract with the deadly plague bacterium.