Costco on Tuesday announced that it had tracked down the cause of an E. coli outbreak linked to its Chicken salad.
The company told customers the outbreak was caused by celery in the salad which was procured from California-based Taylor Farms Pacific. Taylor Farms has since recalled the product.
That announced means recalls will likely span more than a dozen states and includes products sold at major grocery chains, including Walmart, Safeway and Albertsons.
The Food and Drug Administration expanded the recall of food products on Tuesday which now includes more than 155,000 items such as salad kits, vegetable trays, and other prepared foods.
Among the stores involved are Walmart, Sams Club, Costco, Albertsons, 7-Eleven, Target, and Safeway.
Products featuring the farms celery were distributed mostly in the Western states, but stores in states including Georgia, Arkansas, Nebraska and Hawaii are also affected.
Starbucks were also forced to recall more than 45,000 holiday turkey sandwich in California, Oregon, and Nevada.
The CDC has reported 19 people who were infected in seven states across the US. all of those people had eaten the chicken salad from Costco.
While the cause of the outbreak has been found, investigators are continuing their examination to determine how the E. Coli contamination started in the first place.