CDC notes describe a fatal pneumonic plague case in Coconino County, Arizona, in July 2025.

The patient had close contact with two sick domestic cats before symptoms began.

Pneumonic plague is the most severe form of the bacterial infection.

Federal officials urge Southwest clinicians to stay alert for plague presentations.

Early antibiotics remain critical when patients have respiratory distress plus animal exposure.

Cats and wildlife in the region can still carry and transmit the bacteria.

State agencies continue monitoring local animal populations for circulation, according to coverage in the article.

Pet owners are being reminded of zoonotic risks in high-risk Southwest zones.

Read the full article for more details on the Arizona pneumonic plague case.