The recent detection of New World Screwworm in the United States has raised concerns for horse owners, ranchers, and livestock producers across the Southwest. While no cases have been reported in Arizona, understanding the risks, recognizing early signs of infestation, and practicing proper wound management are critical steps in protecting your animals. Learn what New World Screwworm is, how it spreads, and what Arizona horse and livestock owners can do to stay prepared.

Pigeon fever cases are increasing in Tucson horses, and while chest swelling remains the classic sign, we are also seeing distal limb swelling in affected patients. Learn what to watch for, how pigeon fever spreads, and when to call your veterinarian for evaluation.