Screwworm moves into Arizona

 

Screengrab and headline:  ABC News, 10/28/2026

Youri Benadjaoud and Mary Kekatos report:

This is the third state in the U.S. to report an animal case of the flesh-eating parasite. Previously, only Texas and New Mexico had reported infections among animals, according to data from the U.S. Department of Agriculture (USDA). Officials note that the risk to public health is low. 

No human cases have been reported this year. Last year, a Maryland resident who recently returned from travel to El Salvador was found to be infected with NWS, a Department of Health and Human Services spokesperson told ABC News at the time. 

The Arizona Department of Agriculture (AZDA) said on Wednesday that the case was identified in a canine in Cochise County, located in southeast Arizona on the border with Mexico.

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