Canada blocks Texas livestock imports over flesh-eating screwworm
CFIA restricts cattle and horses from Texas after first U.S. case in 60 years; parasite can survive Canadian summers.
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Canada is temporarily restricting livestock imports from Texas after a confirmed case of flesh-eating screwworm was detected in the state for the first time since the 1960s. The Canadian Food Inspection Agency announced the ban Friday following the discovery of an infected calf at a ranch in La Pryor, Texas.
Animals including horses that originated from or were present in Texas within 21 days before crossing the Canada-U.S. border will not be accepted into Canada. The parasite, which feeds on living tissue and can leave gaping wounds, poses a serious threat to livestock health.
"While our colder climate is not hospitable for the long-term establishment of the fly in Canada, they can survive shorter periods of time in the summer months," the CFIA said. "Taking this action now is an appropriate risk mitigation measure to prevent its introduction and protect animal health."
The agency urges veterinarians, ranchers, and animal owners to watch for signs of infestation including worsening wounds, discharge, and foul odour. Canada had already prohibited imports from Mexico, where screwworm cases have also been reported. Canadians travelling to Texas with pets are encouraged to inspect them regularly for any signs of infection.