
Due to a new case of New World screwworm (NWS) in Mexico, U.S. Secretary of Agriculture Brooke Rollins has ordered the closure of livestock trade through southern ports of entry at the U.S.-Mexico border, nine days after announcing that some southern ports would reopen.
The latest case of NWS was reported June 9 by Mexico’s National Service of Agro-Alimentary Health, Safety and Quality (SENASICA) in Ixhuatlan de Madero, Veracruz, in Mexico. This is approximately 370 miles south of the U.S./Mexico border. The new northward detection comes approximately two months after northern detections were reported in Oaxaca and Veracruz, less than 700 miles away from the U.S. border, which triggered the closure of U.S. ports to Mexican cattle, bison and horses on May 11.














