Thousands of Dogs, Cats at Risk of Euthanasia Over Screwworm Threat

Thousands of dogs and cats in Texas shelters face potential euthanasia due to a screwworm threat. Federal and state officials have restricted animal movement after the parasitic fly crossed into the U.S. from Mexico for the first time in six decades. The New World screwworm, which burrows into living flesh, poses a major threat to livestock and wildlife, and can also infect dogs and cats.

The parasite's recent reappearance has raised alarm due to its potential impact on the nation's cattle industry and its ability to spread through pets. Texas shelters, which transfer nearly 89,000 dogs and 53,000 cats out of shelters each year, are particularly affected. The outbreak has led to restrictions on pet transport, causing overcrowding and forcing shelters to find alternative housing.

While some states like New York have eased restrictions, most have not, leaving shelters under pressure to manage the situation. Animal welfare groups hope expanded screening and federal efforts will allow interstate transfers to resume safely.