Canada has temporarily suspended imports of cattle, horses and other livestock from Texas after the discovery of flesh-eating New World screwworm infestations in two calves near the Mexico border.
Under the restrictions, animals that have been in Texas within 21 days of crossing into Canada will not be permitted entry.
The move follows confirmation from US authorities of two cases in Zavala County, marking the first detections of the parasite in Texas in six decades.
Texas Governor Greg Abbott has declared a state of disaster, warning the outbreak could expand during the summer months.
The parasite’s larvae feed on living tissue after hatching in wounds, posing a serious threat to livestock. While Canadian officials believe the country’s colder climate reduces the risk of establishment, farmers have been urged to monitor animals for infected wounds.
US authorities are responding with quarantines, surveillance and plans to release sterile flies to curb the outbreak’s spread.
