The onions were distributed by Thomson International, a food supplier from Bakersfield, Calif.

By Kimberly Holland
August 01, 2020
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For several weeks, scientists and food safety experts in the U.S. have been investigating a multistate outbreak of salmonella poisoning that has sickened 396 people in 34 states and sent 59 to the hospital. Friday night, the Food and Drug Administration reported their traceback investigation had identified the probable culprit: red onions.

Thomson International, a food supplier in Bakersfield, Calif., is the likely source of those particular onions, but as of the time the FDA announced the findings of their investigation, Thomson International had not issued a recall. However, they indicated to the FDA and other state and local health agencies that they would issue a recall. They added that they're likely to recall red, white, yellow, and sweet onions that may have come into contact with the contaminated red onions, not the implicated red onions alone.

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"Although the investigation has determined that red onions are the likely source of this outbreak, Thomson International, Inc. has notified FDA that it will be recalling all varieties of onions that could have come in contact with potentially contaminated red onions, due to the risk of cross-contamination," the FDA's statement read.

The outbreak began June 19, and new cases linked to the onions were reported through July 12, the Centers for Drug Control and Prevention previously said. So far, 396 people have reported cases of salmonella poisoning, and 59 have been hospitalized. No deaths have been linked to the outbreak.

States with the most cases include Oregon (71 cases), Utah (61 cases), and California (49 cases).

The FDA's announcement came on the heels of a similar notification from Canadian health officials, who reported they have linked 114 cases of salmonella poisoning to red onions from a U.S. supplier. There, the agencies had traced the onions back to use in home cooking, restaurant menu items, and residential care settings. They too report zero deaths as a result of the infections.

If you aren't sure where your onions came from, the FDA suggests you throw them out to be safe.

"FDA recommends that anyone who received or suspects having received onions from Thomson International, Inc. use extra vigilance in cleaning and sanitizing any surfaces and containers that may have come in contact with these products to reduce the risk of cross-contamination. This includes cutting boards, slicers, countertops, refrigerators, and storage bins," the agency said in their statement.

Symptoms of a salmonella infection, also called salmonellosis, may begin to show within 12 to 72 hours after you eat the contaminated food. These signs might include diarrhea, fever, and stomach cramps. More severe symptoms of an infection include blood in stool or urine, lethargy, aches, headaches, higher fever, and rashes. In some cases, the infection can be fatal.

Most people, however, will recover from the illness without medical treatment. Children under 5, people over 65, and those with a weakened immune system face greater risk for severe illness.

If you think you were sickened by red onions, talk with your doctor or clinician. Write down what you ate and when, as well as symptoms you experienced. If warranted, they can help connect you with health investigators, who are still investigating the outbreak and its impact.

This story originally appeared on allrecipes.com.