Pet owners in southern and southwestern Texas and southeastern New Mexico are being warned to protect their animals from the New World screwworm fly. The parasite, which is the larvae of the fly, can infest any mammal and cause serious harm or even death if left untreated.

What is the New World Screwworm Fly?

The New World screwworm fly is a tropical species that was largely eradicated from the US over 50 years ago. However, it has recently reappeared in cattle in Texas and New Mexico, prompting warnings from veterinarians and humane societies. The fly’s larvae feed on live flesh and fluids, and can cause significant damage to an animal’s body.

The American Veterinary Medical Association says that newborn animals and animals with open wounds or who have undergone surgery or other medical procedures recently are especially vulnerable to infestation. Even a tick bite can host an infestation, according to Aaron Grady, executive director of the Houston Humane Society shelter.

Signs of Infestation

Pet owners should watch their animals closely and examine them for wounds, cuts, and bites regularly. Signs of infestation include restlessness, a foul smell, and maggots or movement in a wound. If any of these signs are present, pet owners should take their animal to a veterinarian immediately.

Flea and tick medications can help prevent infestations, and veterinarians can treat infestations with antibiotics. However, if left untreated, the larvae can cause death from shock or by moving into vital organs.

Eradication Efforts

State and US Department of Agriculture officials are working to eradicate the fly again, using a method that involves breeding sterile male flies and releasing them into the wild. The female New World screwworm fly mates only once in her lifetime, and if her partner is sterile, her eggs will not hatch, causing the population to drop and eventually disappear.

Original reporting: KCCI Des Moines — read the source article.