“Chicken Salad made with Rotisserie Chicken” from Costco has been connected with at least one case of E. coli O157:H7 in Washington. Consumers who purchased this product – item number 37719 – from any Washington Costco location should discard it.

The Department of Health, along with the Centers for Disease Control and Prevention (CDC) and other western states, are investigating E. coli illnesses from chicken salad purchased from various Costco stores in late October. Washington has confirmed one case of E. coli O157:H7 from King County, who became ill in late October. This confirmed case was not hospitalized.

“We take E. coli very seriously in Washington,” said State Epidemiologist Dr. Scott Lindquist, “and we are working with CDC and state partners to determine the source.”

Others states with confirmed E. coli cased linked to Costco chicken salad include Colorado (4), Montana (NA), and Utah (NA). In addition to CDC, the U.S. Food and Drug Administration and U.S. Department of Agriculture are working with Costco to determine the source of the contamination.