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AZ Game and Fish asks Arizonans to look out for New World screwworm

Beige and brown cows run down a metal fenced enclosure with the border wall behind
Nina Kravinsky
/
KJZZ
Cattle cross the border into Douglas, Arizona, for the first time in more than a year as the United States lifts its ban on livestock imports from Mexico.

Arizona’s Game and Fish Department wants Arizonans to watch out for a flesh-eating parasite after a recent detection in New Mexico.

Earlier this month, New Mexico reported its second case of the New World screwworm parasite in a horse in Grant County, about 50 miles from the Arizona border.

The parasite, which can burrow into the flesh of warm blooded animals and be deadly, has not been reported in Arizona since it re-entered the United States for the first time in decades this past summer.

But the Arizona Game and Fish Department warns that recent detections of New World screwworm in Texas, New Mexico and northern Mexico pose a risk that the parasite could arrive in Arizona.

Reports of the parasite have been growing in Sonora, the Mexican state south of Arizona. Sonora reports 105 active cases of New World screwworm as of Wednesday, after the parasite first arrived in the state in August.

More Mexico news

Nina Kravinsky is a senior field correspondent covering stories about Sonora and the border from the Hermosillo, Mexico, bureau of KJZZ’s Fronteras Desk.