FDA Issues Emergency Use Authorization for Over-the-Counter Injectable Drug to Prevent New World Screwworm in Cattle

Feb 06, 2026

The U.S. Food and Drug Administration issued an Emergency Use Authorization (EUA) for Ivomec (ivermectin) injectable solution against New World screwworm (NWS). The agency has concluded that based on the scientific evidence available, it is reasonable to believe that Ivomec may be effective for the prevention of infestations caused by NWS larvae (myiasis) in cattle when administered within 24 hours of birth, at the time of castration, or when a wound appears, and the known and potential benefits of the product outweigh its known and potential risks.

Ivomec is not for use in female dairy cattle producing milk for human consumption and calves that will be processed for veal. The slaughter withdrawal period for cattle is 35 days.

Source : fda.gov

Video: The Next Pork Disease Outbreak? How Biosecurity Can Stop It Before It Starts!

The threat of disease outbreaks remains one of the biggest challenges facing pork producers across North America. At the World Pork Expo, I spoke with Rob Hannam, CEO of Farm Health Guardian, to discuss why biosecurity is more critical than ever and how innovative technology is helping producers reduce risk before disease reaches the farm.
In this interview, Rob explains how Farm Health Guardian's advanced biosecurity platform helps pork operations monitor and manage visitor access, track potential disease exposure pathways, and strengthen on-farm biosecurity protocols. With recent outbreaks of diseases such as ASF, PRRS, PED and others continuing to impact global pork production and ongoing concerns surrounding the spread of endemic diseases, proactive prevention measures have become essential for protecting herd health and business continuity.
Learn how digital biosecurity tools can help producers identify risks, improve compliance, and create stronger defenses against costly disease outbreaks. Discover why leading pork operations are adopting technology-driven biosecurity solutions to safeguard animals, employees, and the future of the industry.