08/03/2026
New World Screwworm has recently been detected again in the United States, so it's a good time for veterinary teams and pet owners to know what to watch for. This parasite can lay eggs in open wounds, and once the larvae hatch, they feed on the surrounding tissue. Without prompt treatment, this can lead to swelling, pain, infection, and serious damage to the affected area.
Pets and other animals with cuts, recent surgery, bite wounds, healing belly buttons (in newborns), or those without regular parasite prevention may be at higher risk. We can help by encouraging you, the pet owner, to check wounds regularly and seek veterinary care if a wound gets worse instead of better, develops a bad odor, or has visible larvae.