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

The U.S. has again ceased livestock imports from Mexico related to the presence of the parasitic New World screwworm fly ...

The US has halted livestock imports from Mexico as the New World screwworm fly spreads closer to the southern border. The parasitic insect poses a threat to livestock and, in rare cases, humans. US ...

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 a flesh-eating parasite has moved further north in ...

Understanding the New World screwworm blowfly and its behavior underscores why it is so dangerous to the livestock industry.

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

The New World Screwworm (NWS), a devastating parasitic infestation that poses serious health risks to livestock, wildlife, ...

With tail wagging, tongue out and ears perked, Hummer - a young mixed breed dog with a slick black coat - sits down in front of a sample of screwworm scent, promptly accepting praise and treats from ...

New cases of screwworms on July 8 in Veracruz, Mexico has caused the U.S. to close southern borders to livestock imports.

The U.S. Department of Agriculture announced the border closure after Mexico reported a case of a flesh-eating parasite ...