A dog in Lea County, New Mexico has recovered from a New World screwworm infection, according to state veterinarian Samantha Holeck. The animal will return home Thursday after successful treatment, though officials remain puzzled about how the parasite infected the pet in the first place.

The New World screwworm poses significant risks to livestock, causing painful infestations that can kill cattle and other animals. While eradicated from the US in the 1960s, recent outbreaks have reappeared, threatening agricultural operations and prompting costly control measures.

Screwworm infestations carry substantial economic consequences for ranchers and farmers, potentially disrupting cattle markets worth billions. The parasite affects international trade when detected, leading to quarantine measures that can devastate rural economies dependent on livestock exports.

Authorities are investigating the dog's infection source to prevent further spread. Screwworm surveillance typically focuses on wildlife and livestock rather than pets, making this case unusual for agricultural officials tracking potential outbreaks.