Overview
- Mexico suspended imports of specific swine items until further notice after the USDA reported on April 30 that routine tests found antibodies to Aujeszky’s disease in breeding pigs in Iowa linked to Texas.
- The curb covers live pigs, porcine semen, viscera and offal, porcine tissues, and raw materials for pet food, while standard pork cuts remain allowed because muscle meat is not considered a reservoir.
- Senasica also disabled U.S. access to its digital zoosanitary certification platform, which blocks entry of the restricted products while authorities review sanitary risks.
- The pause could disrupt supplies of breeding stock and inputs for pet food, as Mexico bought about 57,000 U.S. live pigs in 2025, roughly 58% of U.S. live-pig exports, and sector officials estimate the affected items are about 10% of Mexico’s pork imports.
- U.S. officials culled the entire 83-head herd at the Iowa farm as a control step, noting commercial herds in the U.S. and Mexico have been declared free since 2004 and 2015, respectively, though feral swine remain a reservoir and human risk is considered low.