U.S. agriculture officials announced a new confirmed case of New World screwworm in Texas on Monday, marking the latest concern in efforts to contain the flesh-eating parasite. The organism, whose ...

Two new cases push U.S. screwworm totals to 27 as a Mexico sterile fly plant opens. See the Texas county breakdown and counties now under quarantine.

Over the past week, the United States saw 12 new cases of New World screwworm across several counties in Central and West Texas — including six confirmed in a single day. The U.S. Department of ...

Texas logged 4 screwworm cases in nearly mid-way through July after 31 in June. See how the outbreak stands and the county ...

A month after Texas confirmed the first U.S. screwworm case, the count stands at 28. See how the outbreak spread by county ...

The New World Screwworm cases in Terrell County, Texas, continue to climb a day after it reported its first case. The U.S. Department of Agriculture reported three new cases in cattle on Tuesday, June ...

Texas screwworm cases are rising. Learn symptoms, risks to pets, and how the parasite spreads across counties.

UPDATE (July 18, 2026) -- As of Saturday, the U.S. Department of Agriculture says the total confirmed New World (NWS) screwworm cases in the United States has increased to 39. According to the ...