USDA's Animal and Plant Health Inspection Service has posted a "New World Screwworm Response" page on its .gov website, the agency confirmed in a public listing reviewed by The Vet Scope. The page sits under APHIS's animal-disease response portfolio and serves as the federal anchor for information on the parasite.

What is on the APHIS page?

The listing identifies the resource as a "New World Screwworm Response" page hosted on the APHIS domain. The page functions as a centralized location for stakeholder information, consistent with how APHIS organizes emergency-animal-disease responses. Practitioners can reach the resource through the agency's main animal-health portal.

Why this agency?

APHIS holds federal authority over livestock pest and disease response in the United States. The agency has historically led sterile-insect release operations against New World screwworm and coordinates interstate movement controls when detections occur. A dedicated response page signals that APHIS is treating the topic as an active, multi-program concern rather than a single-program bulletin.

What should companion-animal practitioners watch for?

Companion-animal veterinarians in non-endemic U.S. states should treat any suspected myiasis case in a returned-travel or imported-animal patient as a notifiable event and contact their state veterinarian before submitting samples. The clinical hallmark — larvae feeding in living tissue of a wound or natural orifice — does not present differently from secondary screwworm (Cochliomyia macellaria) or other calliphorid strike, so presumptive identification alone is insufficient.

What should food-animal producers expect?

Cattle, swine, equine and small-ruminant operations along the southern tier of states remain the primary surveillance front. APHIS typically issues guidance for producers, accredited veterinarians, and state animal-health officials through the same response page, covering wound checks for castration, branding, dehorning, and birthing injuries — the entry points that draw obligate larvae. Producers should review biosecurity and animal-inspection protocols now rather than at the first detection.

What is the regulatory hook?

New World screwworm (Cochliomyia hominivorax) is a foreign animal disease under USDA jurisdiction. Confirmations trigger federal-state coordination, premises quarantine, and treatment protocols, with movement restrictions issued by USDA-APHIS Veterinary Services in concert with the state animal-health official. Practitioners should expect any updated case definitions, treatment guidance, and movement-permit templates to appear on the APHIS response page first.

Where to direct clients

Practice teams can route producer and pet-owner questions to the APHIS page, which carries the .gov trust marker and avoids the misinformation risk of third-party summaries. The Vet Scope will track updates as the agency posts new technical bulletins, case maps, and approved treatment statements.

Federal animal-health authorities routinely update response pages as surveillance data change; the appearance of a dedicated New World Screwworm page is the agency's standing invitation for accredited veterinarians to align their case reporting and client education with current federal guidance.