FDA Approves Emergency Screwworm Treatment for Cats and Dogs as Texas Outbreak Expands

Federal regulators have authorized emergency use of nitenpyram for treating New World screwworm infestations in cats and dogs, marking a significant expansion of the government’s response to the growing Texas outbreak.

The authorization follows confirmed screwworm infections in Texas that initially focused attention on cattle and agricultural losses. Officials now appear to be preparing for broader animal-health concerns by ensuring veterinarians have access to treatment options for companion animals.

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The development has generated strong reaction among pet owners and veterinary professionals, many of whom are sharing information about symptoms, prevention, and wound care.

While officials continue emphasizing containment efforts, the FDA action underscores that the outbreak is no longer viewed solely as a livestock issue. It has become a broader animal-health story with implications for ranchers, veterinarians, shelters, and pet owners across affected regions.

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