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US confirms three new cases of flesh-eating screwworm in livestock

cases of New World screwworm](https://www.theguardian.com/us-news/2026/jun/06/second-flesh-eating-screwworm-infection-texas) – two more in Texas and the other in New Mexico

First US screwworm case in 60 years: Should America be worried?

Mexico confirmed 41 human cases, primarily in the state of Chiapas, according to Mexican media.  The New World screwworm is a species of parasitic fly that is known

Flesh-eating screwworm arrives in US with first case detected in Texas cattle

case detected in Texas cattle A flesh-eating parasite that feeds on warm-blooded animals has been detected in the US for the first time since 1966. New World Screwworm (NWS) has been advancing

US plans to fight flesh-eating screwworm outbreak with flies and dogs

New World Screwworm focuses on deploying hundreds of millions of genetically-altered sterile flies. Experts, though, say the supply of sterile flies is too low to immediately impact and halt the growing screwworm population

Alarm as once-eradicated flesh-eating parasite found in calf in Texas

New World screwworm fly ([NWS](https://www.aphis.usda.gov/animals/animal-health/livestock-and-poultry-disease/stop-screwworm)) was confirmed in the animal in the south of the state, about 50 miles from the Mexico border, Brooke Rollins, the agriculture secretary, said late