The patient had the pneumonic plague, the rarest and deadliest form of the disease. Human cases remain very uncommon in the United States, though plague is endemic to the western part of the country

MONDAY, July 14, 2025 (HealthDay News) — An Arizona resident has died from pneumonic plague, a rare but serious illness, health officials confirmed. The death happened in Coconino County in Northern Arizona, which includes Flagstaff. Officials gave no information about the person who died, The Associated Press reported.

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,