Tracy, CA

An E. coli outbreak that sickened at least 19 people has been traced to rotisserie chicken salad from Costco that contained a tainted celery and onion mix.

The source of the outbreak is from a mix of diced celery and onion produced at Taylor Farms Pacific Inc. in Tracy, California. The farm produces pre-made vegetable mixes and celery sticks that are sold at Costco, Target, Starbucks among other outlets.

The discovery of the contaminated food came after officials in Montana tested a sample of the dice vegetable blend used in Costco’s rotisserie chicken salad. The test came back positive for E. coli O157: H7.

Out of the 19 people sickened by the E. coli contamination, five required hospitalizations.

The infections were reported in California, Colorado, Missouri, Montana, Utah, Virginia, and Washington state.

Taylor Farms Pacific Inc. has responded by recalling more than 150,000 lots of their products from grocery stores in 17 states.

Costco had stopped selling the chicken salad on November 20 when they became aware of the issue from federal health officials.

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