Mexico's President Claudia Sheinbaum called the US decision to suspend Mexican cattle imports for 15 days over a screwworm infection “unfair” on Monday and said she was confident the measure would not result in significant economic losses for her country. “We disagree with this measure,” she said during her daily press conference. “The Mexican government has been working on all fronts since the moment the alert on the screwworm was issued.” The United States restricted Mexican cattle shipments in late November following the detection of the pest, lifted the ban in February after protocols were put in place to test animals prior to their entry into the United States, but reinstated it on Sunday. “The last time this devastating pest invaded the United States, it took our livestock industry 30 years to recover,” U.S. Agriculture Secretary Brooke Rollins said on her account on X, formerly Twitter. ”This cannot happen again.” The screwworm is a larva of the Cochliomyia hominivorax fly that can invade the tissues of any warm-blooded animal, including humans. The parasite enters the animal's skin, causing severe damage and life-threatening injuries. The Mexican Ministry of Health issued an epidemiological warning earlier this month following confirmation on April 17 of the first human case of myiasis caused by the screwworm in a 77-year-old woman living in the southern state of Chiapas.