ARIZONA — Health officials have reported the first plague death since 2007, according to CBS News and the AP. Plague is generally rare in humans, as an average of seven cases are reported annually in the United States. The person who most recently died had the pneumonic plague and lived in Coconino County, Arizona.

An Arizona resident has died from the plague as officials were probing whether a prairie dog die-off in the area was also tied to the lethal illness.

We first brought you the story of a deadly plague diagnosis in Flagstaff earlier this week. A patient arrived at the emergency room and lost their life to the pneumonic plague. Meanwhile, health officials are still searching for the source.

A person in northern Arizona died from bubonic (pneumonic) plague, marking Coconino County's first death from the disease since 2007.

One person in Flagstaff died from the plague, but the Arizona Public Health Association says there's no need to worry. Doctors say it's very treatable and there are things you can do to protect yourself.