A major quarantine has been issued, affecting thousands of people, as fears of a large-scale spread of parasites becomes reality.

New World screwworm larvae feed on the living tissue of warm-blooded animals, creating severe wounds that can be fatal if left untreated.

Two more cases of the New World screwworm have been confirmed in Texas, demonstrating the difficulty of stopping the spread of a pest that potentially could devastate the nation’s…

Two more cases of the New World screwworm have been confirmed in Texas, demonstrating the difficulty of stopping the spread of a pest that potentially could devastate the nation’s…

Scientists expect a handful of new cases could pop up in the coming days and weeks

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New World screwworm infestations in humans are rare, but they can be fatal if left untreated. A female fly lays eggs in open wounds or body openings.

The USDA confirmed in early June that the New World Screwworm has spread into the US

Scientists warn of more cases as officials track first New Mexico infection

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The number of animals infested with a parasitic fly whose larvae feast on living flesh has risen to five, according to the US Department of Agriculture.

A major quarantine has been issued, affecting thousands of people, as fears of a large-scale spread of parasites becomes reality.

"Ivermectin kills New World screwworms in both humans and animals."

The USDA has reported more cases of the New World screwworm, including one outside of Texas.

Five cases of the New World screwworm parasite have been found in Texas and New Mexico.

Six cases of the flesh-eating parasite have been detected in the U.S. this month