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Home » outbreak investigations

Articles Tagged with ''outbreak investigations''

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Death Reported in E. coli Outbreak Linked to Nationally Distributed Organic Carrots

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Food Safety Magazine Editorial Team
November 18, 2024

A multistate outbreak of Shiga toxin-producing Escherichia coli O121:H19 infections linked to organic carrots has sickened 39 people, resulting in 15 hospitalizations and one death.


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McDonald’s E. coli Outbreak Grows to 104 Illnesses in 14 States; Testing Has Not Yet Found Outbreak Strain

Bailee Henderson headshot
Bailee Henderson
November 13, 2024

The number of patients reported in the ongoing Escherichia coli outbreak linked to onions served at McDonald’s restaurants has grown to 104 people across 14 states. A patient has recently been reported in North Carolina.


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whole yellow onions on burlap

FDA Unable to Implicate Grower in E. coli Outbreak Linked to Taylor Farms Onions Served at McDonald's

Bailee Henderson headshot
Bailee Henderson
November 8, 2024

Although the U.S. Food and Drug Administration (FDA) was investigating a grower of interest in Washington state, the agency has been unable to definitively implicate a grower in the Escherichia coli outbreak linked to onions supplied by Taylor Farms and served at McDonald’s.


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CFIA Unable to Confirm Source of Contamination in Fatal Listeria Outbreak Linked to Plant-Based Milk

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Food Safety Magazine Editorial Team
November 5, 2024

The Canadian Food Inspection Agency (CFIA) has completed its root cause investigation of the summer 2024 listeriosis outbreak linked to plant-based Silk and Great Value milks. The agency was unable to confirm the primary source of the contamination, but found that the production facility was not compliant with testing requirements.


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Food Safety Five Ep. 1: Fatal E. coli Outbreak Linked to Onions on McDonald’s Quarter Pounders

Food Safety Five Ep. 1: Fatal E. coli Outbreak Linked to Onions on McDonald’s Quarter Pounders

Bailee Henderson headshot
Bailee Henderson
November 5, 2024

In the debut installment of the Food Safety Five Newsreel, we discuss an ongoing multistate outbreak of Escherichia coli infections linked to onions served at McDonald’s restaurants. The episode also takes a look at legislation passed in California that marks the country’s first mandatory food date labeling reforms.



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fresh sliced yellow onion

CDC Names Taylor Farms Onions as Cause of McDonald’s E. coli Outbreak; Patient Count Rises to 90

Bailee Henderson headshot
Bailee Henderson
October 31, 2024

The U.S. Centers for Disease Control and Prevention (CDC) has officially named Taylor Farms onions served at McDonald’s as the source of the recent Escherichia coli outbreak, and has reported 90 illnesses, 27 hospitalizations, two cases of Hemolytic Uremic Syndrome, and one fatality.


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raw cut and whole yellow onions

Major Chains Pull Onions Due to E. coli Concerns After Taylor Farms Confirmed as McDonald’s Supplier

Bailee Henderson headshot
Bailee Henderson
October 25, 2024

Amid the ongoing E. coli outbreak, Taylor Farms has been confirmed as the onion supplier to the affected McDonald’s locations. As a result, national restaurant chains are proactively pulling onions from their menus. FDA is still investigating whether onions are the vehicle of illness.


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At Least One Death Caused by E. coli Outbreak Linked to McDonald’s Quarter Pounders

Bailee Henderson headshot
Bailee Henderson
October 23, 2024

A foodborne illness outbreak linked to McDonald’s Quarter Pounders contaminated with Escherichia coli has caused 49 illnesses, ten hospitalizations, and one death in ten states. Slivered onions used on the sandwiches are the probable vehicle of illness. 


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Following Deadly Listeria Outbreak, USDA Launches Internal Investigation Into How it Handled Boar’s Head’s Unsanitary Production Facility

Bailee Henderson headshot
Bailee Henderson
October 16, 2024

Following the history of serious food safety noncompliances at Boar’s Head’s Jarratt, Virginia plant, which led to a fatal listeriosis outbreak, USDA’s Inspector General has launched an internal investigation into the agency’s handling of the repeated sanitary violations found at the facility.


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sliced queso fresco style cheese on a cutting board

Court Orders Rizo Lopez Foods to Stop Production Until Further Notice After Deadly, Decade-Long Listeria Outbreak

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Food Safety Magazine Editorial Team
October 9, 2024

A U.S. District Court has entered a consent decree of permanent injunction against Rizo Lopez Foods, a company that produced queso fresco and cotija cheese products linked to a decade-long listeriosis outbreak, requiring the firm to stop producing and selling certain products until FDA can confirm its compliance with federal food safety regulations.


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