LAS CRUCES – A confirmed case of New World screwworm in a New Mexico dog is drawing attention from animal health officials and raising concerns for livestock owners and pet owners across the region.
Federal officials recently confirmed the state’s first case in a dog from Lea County. The New Mexico case follows several confirmed cases in Texas involving calves and a goat.
New World screwworm is the larva of a parasitic fly. Unlike common maggots that feed on dead tissue, screwworm larvae feed on living flesh. The flies lay eggs in open wounds or body openings of warm-blooded animals. Once the eggs hatch, the larvae burrow into tissue, creating painful and potentially serious wounds.
The parasite can affect livestock, wildlife, household pets, and, in rare cases, humans. Health officials say there have been no locally acquired human cases reported in the United States during the current outbreak, but people can become infected if flies lay eggs in open wounds.
The New Mexico case may be of particular interest to pet owners because the infected animal was a dog rather than livestock. Veterinarians are encouraging owners to routinely inspect dogs and cats for wounds, sores, unusual drainage, foul odors, visible maggots, or signs that an animal is repeatedly licking or guarding a painful area.
Areas around the ears, eyes, nose, mouth, genitals, and any existing wounds should be checked carefully. Early detection and treatment are critical.
Treatment is available but requires prompt veterinary care. Larvae must be removed and destroyed, and affected wounds must be properly treated to prevent further damage.
Animal health officials say the current outbreak has been moving north through Central America and Mexico, increasing concerns for states along the southern border.
Anyone with questions about New World screwworm or how to protect livestock and pets may contact the Dona Ana County Extension Service 170 N. Solano Drive, Suite M Las Cruces, NM 88001
By John Krehbiel – Bravo Mic Communications – John@Bravomic.com
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