Washington State Department of Health is reporting 1 ill and Colorado Department of Health is reporting 4 ill.  Others are ill in Montana and Utah from E. coli O157:H7 linked to Costco Chicken Salad.

Given its size, Costco had not had many outbreaks in the last few years.

Hepatitis A Linked to Townsend Farms Frozen Berries, March-July 2013

On May 31, 2013 the CDC announced that public health investigators had identified an outbreak of acute hepatitis A attributed to consumption of frozen mixed berries produced by Townsend Farms. As of September 20, 2013 162 patients had been identified…Read More »

XL Foods Inc. beef linked to E. coli O157 Illnesses, 2012

Following identification of 4 patients in Edmonton, Alberta in September 2012 who were infected with E. coli O157 after consuming steaks purchased at Costco and manufactured by XL Foods, Inc. public health investigators in Canada learned of additional…Read More »

Salmonella Thompson Associated with Dutch Smoked Salmon, 2012

An outbreak investigation of Salmonella Thompson possibly linked to smoked salmon manufactured by Dutch company, Foppen, was initiated in September 2012. At least 85 patients with a genetically indistinguishable strain of Salmonella serotype Thompson…Read More »

Bravo Farms Dutch Style Gouda Cheese, Unpasteurized 2010

An outbreak of E. coli O157:H7 was linked to the consumption of Bravo Farms Dutch Style Gouda Cheese. The cheese was sold, and was provided as in-store samples, at Costco Wholesale Corporation outlets. Laboratory testing of two opened, and one unopened…Read More »