More than 800 people have gotten sick from an outbreak of salmonella linked to red, white and yellow onions imported from Chihuahua, Mexico, the Centers for Disease Control and Prevention (CDC) announced on October 20.

The onions were distributed by ProSource Produce and sold to restaurants and grocery stores nationwide. Although the onions were last imported to the U.S. on Aug. 27, they can last up to three months in storage and may still be in homes and businesses.

The CDC says that 652 people were confirmed to have been infected with the outbreak strain, Salmonella oranienburg, in 37 states between May 31 and Sept. 30. They range in age from less than a year to 97. Of those victims, 129 were hospitalized.

Additionally, 145 of the 193 people who provided detailed information on their illness reported eating or possibly eating raw onions before becoming sick. Several had dined at the same restaurants, which helped investigators determine that many had eaten raw onions. Officials are still working to identify other possible onion suppliers that may be linked to this outbreak. The restaurants were not publicly identified.

The actual number of infections is likely higher because people are not regularly tested for salmonella, the CDC says, and many who are infected recover without seeing a doctor. Since it takes up to four weeks to determine if a sick person is part of an outbreak, more victims may be added to the total.

Possible onion outbreaks can be difficult for experts to investigate, since onions are a “stealthy” ingredient in many dishes, and people may not know if they’ve eaten them, the CDC says.

Possible onion outbreaks can be difficult for experts to investigate, since onions are a “stealthy” ingredient in many dishes, and people may not know if they’ve eaten them, the CDC says.

Onions can become contaminated at any point in the food supply chain — while growing in the fields, during processing or distribution, or when they’re being prepared in a restaurant or home.

Last year, a salmonella outbreak from contaminated red onions caused more than 1,000 infections. 

ProSource has voluntarily recalled whole onions shipped from Chihuahua between July 1 and Aug. 31, 2021. The onions were distributed in 35 states in mesh bags ranging from 2 pounds to 50 pounds and in cartons ranging from 5 pounds to 50 pounds. Affected onion brands include Big Bull, Peak Fresh Produce, Sierra Madre, Markon First Crop, Markon Essentials, Rio Blue, ProSource, Rio Valley and Sysco Imperial, according to the recall announcement from the Food and Drug Administration. 

Green Giant brand onions obtained through ProSource were also recalled. They were sold to distribution centers in North Dakota and Minnesota between July 9 and Aug. 6 as whole yellow onions in 2, 3, and 5-pound bags; whole white onions in 2-pound bags; and whole red onions in 2-pound bags. The company said that the effected onions are past their typical shelf life, but consumers should refer to the press release for specific lot codes and labels.

Additionally, Keeler Family Farms voluntarily recalled its red, yellow and white onions sold under the MVP brand that were shipped from July 1 to Aug. 25 and imported from Chihuahua, Mexico. Although to date no onions marketed through Keeler Family Farms have tested positive for salmonella, the recall is being implemented out of an abundance of caution. Its onions, sold in 25 and 50-pound mesh sacks, were distributed to wholesalers, restaurants and retail stores in all 50 states and the District of Columbia, according to the recall notice. 

Other onions sold by the meal kit companies HelloFresh and EveryPlate were recalled, but the announcements did not indicate if they were sourced from ProSource or imported through Chihuahua, Mexico. Both companies advised its consumers to discard all onions received between July 7 and Sept. 8. Refer to the recall notices for the affected product codes.

​The advice for consumers is throw away onions with stickers or packaging that says “product of Mexico” and that says they are from Keeler Family Farms, ProSource Inc. or one of its brands.

If you can’t tell where the onions are from, don’t eat or buy them. 

Also wash surfaces and containers that contaminated onions may have touched with hot soapy water or in a dishwasher.

This article is provided as a public service by DCPATRIOT and AARP. 

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