The map shows the ports of entry affected by the U.S. Agriculture Department’s announcement and the approximate locations of ...

The reemergence of the New World screwworm, which poses significant health risks for livestock, has prompted the Department ...

The New World screwworm fly, a flesh-eating parasite, is making a concerning comeback. Learn about the screwworm's threat to ...

The U.S. has closed its southern border again to livestock imports, saying that a flesh-eating parasite has moved further ...

A detection of the New World Screwworm closer to the United States will keep the ports closed to livestock from Mexico.

The US has reinstated its livestock import ban from Mexico after the New World screwworm fly was found further north than ...

The U.S. closes its southern border due to New World screwworm fly, a flesh-eating parasite that has decimated cattle ranches ...

The U.S. has shut its southern border to livestock imports again after a flesh-eating parasite was found further north in ...

The US has closed its southern border to livestock imports, citing the spread of the New World screwworm fly in Mexico. While ...

The Santa Teresa livestock crossing was set to open up July 21st after months of closure due to the New World Screwworm, a flesh eating parasite found in Mexico. But after a new case was found in the ...

If the New World screwworm were to start another outbreak in the U.S. like in the 1950s and 1960s, the parasite could fatally affect livestock, pets, wildlife, and potentially humans.

What is the New World screwworm? A parasite whose larvae hatch in wounds on mammals and feed on the host’s flesh and fluids. Infestations in livestock could cause large economic losses.