An undisclosed amount of fresh onions, believed to be linked to a growing salmonella outbreak, is being voluntarily recalled.
In a recall notice posted to the Food and Drug Administration website Thursday, ProSource Produce said the whole raw onions (red, white and yellow) are potentially contaminated with salmonella.
The recall comes a day after the Centers for Disease Control and Prevention announced the link between the onions, which were imported from Chihuahua, Mexico and distributed by ProSource, which is based in Hailey, Idaho.
The CDC said in a food safety alert Wednesday that 652 people have been infected with the outbreak strain of Salmonella Oranienburg from 37 states as of Oct. 18. The number of cases is expected to grow as more illnesses are reported.
►Recalls you need to know about: Check out USA TODAY's curated database of consumer product recalls for the latest information
►Walmart holiday shopping: Walmart extends delivery hours for orders coming from stores, including Black Friday deals
The FDA said Wednesday ProSource had agreed to recall the affected onions that were shipped from Mexico between early July and late August. Details of the recall were not available until Thursday.
ProSource said in the recall that the onions were "distributed to wholesalers, broadline foodservice customers, and retail stores" in mesh sacks ranging from 2 to 50 pounds and cartons ranging from 5 to 50 pounds "by the following distributors and/or under the following brands: Big Bull, Peak Fresh Produce, Sierra Madre, Markon First Crop., Markon Essentials, Rio Blue, ProSource, Rio Valley, and Sysco Imperial."
A list of retailers who sold the onions was not included in the recall but the recall says the onions were distributed in 35 states. Recall notices often don't initially include a list of where the affected products were sold.
Are onions safe to eat?
The CDC said the imported onions can last up to three months in storage. The agency says consumers should not buy or eat the affected onions or onions that you don't know where they are from.
"Throw away any whole red, white, or yellow onions you have at home that do not have a sticker or packaging," the CDC said. "If you can't tell where the onions are from, don't buy or eat them."
Affected onion types include jumbo, colossal, medium, and sweet onions, the FDA said.
ProSource said no fresh onions that have originated in Chihuahua, Mexico have been shipped by the company since the end of August.
ProSource said consumers who have purchased onions that originated in Chihuahua are "urged to return them to the place of purchase for a full refund or throw them out." For questions, contact the company at 208-928-4959 on weekdays from 8 a.m. to 5 p.m. Mountain Time.
►Lowe's first responder discount: Nurses, firefighters, police and doctors save 10% ahead of First Responders Day
Remember Fisher-Price's classic toy telephone?: It's now a real working phone, and you can buy one
Mysterious salmonella outbreak
The salmonella outbreak was first reported in mid-September but health officials had not identified a food linked to the illnesses.
Symptoms of salmonella include diarrhea, vomiting, fever, stomach cramps and dehydration, which can begin six hours to six days after being exposed to the bacteria, according to the CDC. Most people recover without treatment after four to seven days.
"While investigations into various potential sources of Salmonella remain ongoing, to date no onions marketed through ProSource have tested positive for Salmonella," ProSource said. "This voluntary recall is being conducted out of an abundance of caution, in cooperation with the U.S. Food and Drug Administration (FDA), based on reported illnesses which have been associated with the possible consumption of fresh onions that originated in Chihuahua."
Isabel Brown, consumer watchdog associate with the PIRG Education Fund, said in a statement that the latest outbreak "points to the need for better tracing of imported foods so that when an outbreak occurs, we can identify the source more quickly."
"We've known for a long time there's an urgent need to better track all food through the supply chain so we can identify infections more quickly and recall contaminated food immediately," Brown said.
►Save better, spend better: Money tips and advice delivered right to your inbox. Sign up here
►Salmonella outbreak linked to onions: Throw away onions if you don't know where they're from, CDC says
Salmonella outbreak spread to 37 states
According to the CDC, Texas has the most cases in the ongoing outbreak with 158, followed by Oklahoma with 98 cases. Virginia has 59 cases, Maryland 58, Illinois 37, Wisconsin 25, Minnesota 23 and Missouri has 21 cases.
Other states with cases have 14 or fewer cases are: Kansas, North Carolina, Arkansas, Massachusetts, New York, Tennessee, California, Kentucky, Michigan, Nebraska, New Mexico, South Dakota, Ohio, Pennsylvania, Florida, Louisiana, New Jersey, Connecticut, North Dakota, Alabama, Iowa, South Carolina, Utah, Georgia, Mississippi, Oregon, Colorado, Indiana and West Virginia.
"The true number of sick people in an outbreak is likely much higher than the number reported, and the outbreak may not be limited to the states with known illnesses," the CDC said. "This is because many people recover without medical care and are not tested for Salmonella."
ProSource said the onions were distributed to the following states: Alabama, Arkansas, Arizona, California, Colorado, Connecticut, Florida, Georgia, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, Nebraska, New Jersey, New Mexico, New York, North Carolina, Ohio, Oklahoma, Pennsylvania, Rhode Island, South Carolina, Tennessee, Texas, Virginia and Wisconsin.
Four states not listed in the ProSource's list that the CDC map shows illnesses in are: North Dakota, Oregon, Utah and West Virginia. The CDC has not reported cases in Arizona and Rhode Island.
►Christmas shipping deadlines 2021: FedEx, UPS and USPS say these are the last days to ship gifts
►Target's new Apple stores: Target to open more 'mini Apple shops' in time for holiday shopping. Will your store get an upgrade?
Contributing: Jordan Mendoza, USA TODAY
This article originally appeared on USA TODAY: Onion recall 2021: ProSource recalls onions linked to salmonella cases