Elanco Animal Health Commits to Supporting U.S. Livestock Producers and Pet Owners in Fight Against New World Screwworm

Company offers portfolio of treatment options and expert guidance following first confirmed case in the United States  New World screwworm has officially reached the United States, with the first confirmed case in U.S. livestock in Texasi  New World screwworm can infest any warm-blooded animals – including livestock and pets – posing a significant threat to animal health, welfare, and producer livelihood  Elanco offers a portfolio of options for both livestock and pets that can treat infestations caused by New World screwworm larvae  INDIANAPOLIS , June 4, 2026 /PRNewswire/ -- Elanco Animal Health Incorporated (NYSE: ELAN) today reaffirms its commitment to providing veterinarians, livestock producers, and pet owners with resources and treatment options for their animals against the escalating threat posed by New World screwworm (NWS). The fly recently reached the United States, with the first case confirmed in U.S. livestock in Texas.i  The emergence of New World screwworm in the U.S. creates a threat for veterinarians, livestock producers and pet owners that has not been seen north of the Florida Keys since the fly was eradicated from the United States more than 50 years ago.ii New World screwworm (Cochliomyia hominivorax) larvae feed on living tissue and can affect a wide range of warm-blooded animals, including livestock, companion animals, wildlife, and even humans.ii  "New World screwworm could have a devastating impact on animal health, welfare, and producer livelihoods," said Jeff Simmons, President and CEO, Elanco Animal Health.