An Iowa State University study found mammary glands in livestock and humans have receptors that could let highly pathogenic avian influenza virus bind and possibly replicate, highlighting potential new spread pathways and need for vigilance.

Donald J. Trump has threatened to impose a 5% tariff on Mexico unless it immediately supplies water owed under a 1944 treaty — accusing it of breaching water-sharing obligations that harmed U.S. farmers.

Trump ordered DOJ and FTC to investigate possible price-fixing and anti-competitive practices in the food supply chain, targeting foreign-controlled firms to reduce costs and improve food security.