The U.S. Department of Agriculture has confirmed a second case of the New World screw worm in Texas. The parasite was detected in a one-month-old calf in Zavala County, Texas, approximately 9 kilometers from the first case announced earlier this month.
Authorities reported that additional samples collected from the surrounding area have so far tested negative. Officials at both the federal and state levels noted that the second case was identified within the movement control zone established after the initial detection, where sterile insects have been released to suppress the pest.
The parasite affects a wide area
New World screw worm larvae feed on the living tissue of warm-blooded animals and can cause severe wounds if untreated. The parasite threatens cattle, wildlife, pets, and in rare cases, humans.
U.S. authorities maintain that this finding does not threaten the country's food safety. According to the Department, screw worms do not contaminate meat, fruits, vegetables, or other food products; affected animals are detected during inspections, and contaminated products are not allowed into commerce.
Temporary import restrictions from Canada
Following the second case, the Canadian Food Inspection Agency announced a temporary restriction on the import of live animals from the affected U.S. regions. Under the new rule, cattle, horses, and similar animals located in Texas or that have been in the state within 21 days before crossing the border will not be allowed entry into Canada.
Dudley Hoskins from the U.S. Department of Agriculture stated that the agency is acting swiftly in the fight against the pest, recalling that they have previously eradicated it and expect the same outcome this time. Russell Boening, President of the Texas Farm Bureau, urged animal owners and Texans to remain vigilant and emphasized the importance of monitoring and reporting.
Although the incident remains within the boundaries of the movement control zone established after the first case, it has led to new measures affecting cross-border trade. The situation is still evolving.