APHIS confirms a New World screwworm case in a 22-month-old bovine transported from Veracruz to a feedlot in Nuevo León.

On Dec. 3, 2025, the Texas Department of Agriculture reported in a press release that the U.S. Department of Agriculture had ...

The U.S. government says a preventative drug is effective in treating New World screwworm infestations in cats, particularly ...

Merck Animal Health, known as MSD Animal Health outside of the United States and Canada, a division of Merck & Co., Inc., ...

This week, the U.S. Food and Drug Administration conditionally approved a topical solution for the prevention and treatment ...

New World screwworm ( Cochliomyia hominivorax) is once again an active threat in the Americas. Cases in Mexico have risen and detections are approaching the US border, while federal agencies and ...

New World screwworm continues to be a top concern for the U.S. Department of Agriculture and the cattle industry. USDA ...

The Exzolt Cattle-CA1 aka Fluralaner topical drug has received conditional approval from federal regulators to prevent and ...

The New World screwworm in Mexico has prompted an almost year-long blockade on imported cattle and disrupted domestic ...

In October 2025, the FDA announced that it issued an emergency use authorization for otilaner chewable tablets (Credelio Cat; ...

The Agriculture Department on Friday launched a New World screwworm website that a news release said “centralizes NWS information available across the federal government and reflects our ...