Flesh-Eating Screwworms Infest US Pets: 4 Dogs & Cat Attacked
USDA reports 74 animal cases across the US since parasitic flies invaded in June 2026, with 4 dogs and a cat attacked this week.

Stock photo for illustration only, not from the actual event
- USDA confirms 74 total animal cases involving flesh-eating screwworms in the US
- Parasitic fly invasion officially began back in June 2026
- Latest reports show 4 dogs and 1 cat were attacked this week
The US Department of Agriculture (USDA) has released alarming figures regarding an ongoing parasitic fly invasion, as flesh-eating screwworms have begun targeting domestic pets. Recent reports from this week alone confirm that multiple household animals have fallen victim to these dangerous parasites.
According to the latest updates, a total of five pets—specifically four dogs and one cat—were attacked and infested by the screwworm larvae this week. This sudden spike has raised significant concerns among pet owners and local communities regarding the rapid spread of the parasite.

Stock photo for illustration only, not from the actual event
Ever since these parasitic flies first invaded the country back in June, federal agencies have been closely monitoring the situation and tracking the expanding geographic footprint of the infestations.
Official records from the USDA show that a total of 74 animal cases have now been identified across the United States. This cumulative figure highlights the persistent challenge authorities face in containing the invasive pest.
Cochliomyia hominivorax, commonly known as the New World screwworm fly, poses a severe threat to both domestic pets and livestock. Female flies lay eggs in open wounds, and the resulting larvae feed on living tissue, which can lead to fatal infections if left untreated. Controlling this parasite is critical to preventing widespread agricultural and domestic animal losses in the United States.
USDA officials continue to urge pet owners to inspect their animals regularly for any open wounds or unusual symptoms and to report suspected cases immediately to veterinary authorities to help curb the outbreak.
Source: Ars Technica
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