Restaurant News

Cheese from Costco Likely Tied to E.Coli Cases, Officials Say

This just in from the Arizona Department of Health Services: You might want to think twice before cutting the cheese.

From a DHS news release sent out this afternoon:

More than two dozen cases of Escherichia coli (E. coli) in five states are likely tied to cheese sold or tasted at Costco stores in October. Federal, state and local health officials are working to determine the type of cheese causing illness. Preliminary data are pointing to the Dutch style Gouda, but health officials are still investigating. The Arizona State Public Health Laboratory currently is testing several samples.

These illnesses may be associated with cheese served and sold at "Cheese Road Shows" Costco held during the month of October. Costco is fully cooperating with the investigation and stores are voluntarily removing suspect products from its shelves. In order to protect consumer health, Costco is also notifying customers who purchased the cheese and is asking members to return all cheese from the road show.

There are at least 25 confirmed E. coli cases in several states including Arizona (11), California (1), Colorado (8), Nevada (2) and New Mexico (3).

With E. coli people usually will experience symptoms between one and 10 days after consuming a contaminated product. Certain strains of E. coli can cause severe bloody diarrhea and abdominal cramps; sometimes the infection causes non-bloody diarrhea or no symptoms. Usually little or no fever is present, and the illness resolves in five to 10 days.

If you have these symptoms and are concerned, contact your healthcare provider. If you have concerns about your cheese, take it to the Costco where it was purchased.

KEEP PHOENIX NEW TIMES FREE... Since we started Phoenix New Times, it has been defined as the free, independent voice of Phoenix, and we'd like to keep it that way. With local media under siege, it's more important than ever for us to rally support behind funding our local journalism. You can help by participating in our "I Support" program, allowing us to keep offering readers access to our incisive coverage of local news, food and culture with no paywalls.
Amy Silverman is a two-time winner of the Arizona Press Club’s Journalist of the Year award. Her work has appeared on the radio show This American Life and in the New York Times, the Washington Post, Lenny Letter, and Brain, Child. She’s the co-curator of the live reading series Bar Flies, and a commentator for KJZZ, the NPR affiliate in Phoenix. Silverman is the author of the book My Heart Can’t Even Believe It: A Story of Science, Love, and Down Syndrome (Woodbine House 2016). Follow her on Instagram (@amysilverman), Twitter (@amysilvermanaz), and at