Public Health & One Health

Cochliomyia hominivorax, the New World screw-worm fly, or screw-worm for short

USDA Lifts New World Screwworm Restrictions in Two Texas Zones

USDA APHIS has lifted New World screwworm infested-zone designations covering portions of five Texas counties, removing NWS-specific livestock and pet movement requirements in those areas. Other infested zones remain active as federal and state officials continue surveillance and response efforts.

USDA Confirms First U.S. Case of Classical Scrapie in More Than Five Years

The U.S. Department of Agriculture has confirmed a case of classical scrapie in a sheep slaughtered in Oregon, ending a more than five-year period without a detection. Federal and state animal health officials have launched an epidemiological investigation while emphasizing the importance of animal identification and continued surveillance.

Cochliomyia hominivorax, the New World screw-worm fly, or screw-worm for short

FDA Authorizes Emergency Use of Ivermectin to Help Prevent New World Screwworm in Horses

The U.S. Food and Drug Administration has issued an Emergency Use Authorization (EUA) for Ivermectin Liquid for Horses to provide short-term prevention of New World screwworm infestations in horses. The authorization adds another federal tool aimed at protecting U.S. livestock and equine populations as officials prepare for the potential spread of the destructive parasite.

Never Miss an Animal Health Story

Sign up for free to receive the latest veterinary news, product announcements, and industry developments.