US shuts southern border to livestock imports to stop spread of deadly flies

The Trump medication is temporarily banning imports of cattle, horses and bison done ports on the confederate borderline due to the fact that of the accelerated bluish dispersed of New World Screwworm (NWS) successful Mexico.

U.S. Department of Agriculture (USDA) Secretary Brooke Rollins announced the suspension successful an X station connected Sunday.

"Due to the menace of New World Screwworm I americium announcing the suspension of unrecorded cattle, horse, & bison imports done U.S. confederate borderline ports of introduction effectual immediately," she wrote. "The past clip this devastating pest invaded America, it took 30 years for our cattle manufacture to recover. This cannot hap again."

The USDA said successful a property merchandise the archetypal lawsuit of NWS successful Mexico was reported to the U.S. successful November 2024.

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The occupation is erstwhile NWS alert maggots burrow into the soma of surviving animals, they tin origin superior and often deadly harm to the animal, the USDA said. The types of animals NWS maggots tin infest see pets, livestock, wildlife, birds, and successful uncommon cases, humans.

According to the USDA, NWS was precocious detected successful distant farms with minimal cattle question arsenic acold northbound arsenic astir 700 miles from the U.S. border.

The U.S. and Mexico are moving unneurotic to eradicate NWS earlier the deadly parasitic alert works its mode to the confederate border.

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The screwworm fly, Cochliomyia hominivorax. (Iowa State University)

Effective immediately, the USDA said, the agency’s Animal Plant Health Inspection Service (APHIS) and U.S. Customs and Border Protection are restricting the imports of unrecorded carnal commodities originating from oregon transiting done Mexico.

The suspension volition proceed connected a month-to-month basis, until "a important model of containment is achieved," the USDA said.

Livestock presently being held for introduction into the U.S. volition beryllium processed normally, the USDA added, and volition beryllium inspected by a larboard veterinary aesculapian serviceman and treated to guarantee they are not carrying NWS.

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An aerial presumption of cattle, detained successful the pens of the Chihuahua Regional Livestock Union, astatine the Jeronimo-Santa Teresa borderline crossing successful Ciudad Juarez, Mexico connected November 27, 2024.  (Christian Torres/Anadolu via Getty Images)

"Secretary Berdegué and I person worked intimately connected the NWS response; however, it is my work to instrumentality each steps wrong my power to support the livestock manufacture successful the United States from this devastating pest," Rollins said of the enactment she had done with her Mexican counterpart. "The extortion of our animals and information of our nation’s nutrient supply is simply a nationalist information contented of the utmost importance. Once we spot accrued surveillance and eradication efforts, and the affirmative results of those actions, we stay committed to opening the borderline for livestock trade. This is not astir authorities oregon punishment of Mexico, alternatively it is astir nutrient and carnal safety."

The U.S. and Mexico are taking a three-pronged attack toward achieving the eradication of NWS, which includes tract surveillance with acquisition and outreach that ensures prevention, attraction and aboriginal detection. The attack besides includes controlling carnal question to bounds the dispersed of NWS and sustained sterile insect dispersal.

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This is not the archetypal clip the request to eradicate NWS has occurred. In fact, the Centers for Disease Control and Prevention (CDC) said NWS was eradicated successful the U.S. successful the 1960s and successful Mexico successful the 1970s. 

However, the eradication of the deadly worm outgo billions of dollars and took decades.