A rare and aggressive parasitic infestation has reached Arizona, marking the third U.S. state affected by the New World screwworm, a fly whose larvae burrow into living tissue. The case was detected in a domestic dog in Cochise County, near the Mexican border, raising concerns about the pest’s potential spread. Authorities confirmed the finding through a USDA press release, highlighting the need for vigilance in border regions. The parasite, known for causing severe damage in livestock and wildlife, has prompted calls for heightened monitoring and control efforts.
Arizona reported its first case of New World screwworm on Wednesday, making it the third state to be impacted by the parasite. The confirmed case was found in a domestic dog in Cochise County, Ariz., which shares a border with Mexico, according to a press release from the U.S. Department of Agriculture. The state’s Department...