Both Purina and Milo’s Kitchen are voluntarily recalling chicken dog treats nationwide due to the potential that the products may contain trace amounts of residual antibiotics. The recalled products include Purina’s Waggin’ Train and Canyon Creek Ranch dog treats, as well as Milo’s Kitchen Chicken Jerky and Chicken Grillers. On Monday, the New York State Department of Agriculture discovered traces of unapproved antibiotics used on chickens that made its way into the Chinese-made food products. The antibiotics in question are approved by China and the European Union, but not the U.S. Since 2011, more than one thousand pet owners in the U.S. have reported dogs falling ill or dying after eating Chinese chicken jerky treats. A similar spike occurred in 2007. Food Safety News published an in-depth report on the issue in March 2012. In July, the U.S. Department of Agriculture released five years’ worth of data on pet treat testing, but could find no conclusive evidence of harmful substances out of 285 tests.