E. coli from Costco chicken salad traced to tainted celery
November 26, 2015 at 22:11 PM EST
LOS ANGELES, Nov 26 (Reuters) - A multi-state E. coli outbreak that has sickened at least 19 people who ate rotisserie chicken salad sold at Costco Wholesale Corp's stores has been traced to a celery-and-onion mix used in the salad, prompting its California maker to recall the product.