Pneumonic plague is both “the least common and most dangerous type of plague,” according to the Cleveland Clinic.

A resident of northern Arizona has died from pneumonic plague, health officials said Friday. Plague is rare to humans, with on average about seven cases reported annually in the U.S., most of them in the western states, according to federal health officials.

The hospital noted that "appropriate initial management" and "attempts to provide life-saving resuscitation" was performed, but "the patient did not recover." Bubonic plague — k