The U.S. Department of Agriculture confirms the first New World screwworm (NWS) case in the United States on June 3, leading veterinarians and humane organizations to urge pet owners to stay alert. Multiple outlets report that two NWS cases have been found in dogs in Texas and New Mexico. Those animal cases are part of a broader tally of more than 30 confirmed NWS instances across Texas and New Mexico, according to reporting.
NWS is caused by the larvae of a parasitic fly, which infest wounds. If larvae are not treated promptly, they can cause significant tissue damage, prompting guidance aimed at preventing infestations from taking hold. Coverage also emphasizes that the risk is relevant beyond pet homes, including shelters and care settings for stray or unowned animals, where monitoring for injuries and early veterinary treatment are highlighted as key preventive steps.
Overall, sources align that NWS infestations are preventable and treatable when recognized early, and that vigilance—especially around any wounds or skin injuries—is the main message from animal health officials and humane groups.
