Onions produced by Thomson International Inc. of Bakersfield, CA are the source of a Salmonella Newport outbreak that has sickened 640 people in the U.S., according to the Centers for Disease Control and Prevention (CDC).  Eighty-Five people have been hospitalized. Illnesses have also been reported in Canada. Consumers should not eat Thomson onions or products made with them such as sandwiches, salads an salsa.


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The identification of Thomson onions as the source of the outbreak comes weeks after the fast-growing outbreak, which includes cases in both Canada and the U.S, was first announced. Genetic tests have shown that the “fingerprints” of both outbreak strains closely resemble each other.

Yesterday, Canadian health officials determined that red onions grown in the U.S, and distributed by Sysco to restaurants, food service locations and long-term healthcare centers throughout Canada were the source of the Salmonella Newport outbreak that has sickened more than 100 Canadians.

Working off of the breakthrough in Canada, the U.S. Food and Drug Administration (FDA) conducted an investigation that traced back the illnesses to the original source and identified Thomson. The company has notified the agency that it will be issuing a recall for all varieties of onions that may be associated with this outbreak.

Symptoms of a Salmonella outbreak include abdominal cramps, diarrhea and fever that usually develop between six and 72 hours after exposure. If you developed these symptoms after eating red onions or products containing them such as sandwiches, wraps, salads, and dips, see a  healthcare provider and get tested.

Onion Salmonella Outbreak – 640 Total Known Cases (August 7, 2020)

In the U.S., cases have been reported from the following 43 states: AK (6), AL (1), AZ (14), CA (76), CO (14), CT (2), DE (1), FL (3), GA (1), ID (26), IL (41), IN (2), IA (20), KS (2), KY (1), ME (4), MD (1), MA (2), MI (36), MN (14), MS (2), MO (6), MT (52), NE (10), NV (8), NH(1), NJ (2), NM (1), NY (5), NC (5), ND (8), OH (8), OR (85), PA (9), SC (1), SD (17), TN (5), , UT (90), VA (8), WA (25), WV (2), WI (7), WY (16).

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