Category Archives: foodborne outbreak

USA- FDA – Core Investigations of Foodborne Illness Outbreaks

FDA

What’s New

  • For the investigation with the not yet identified cause of illness (ref # 1152), preliminary information reported by Gallatin City- County Health Department and the Montana Department of Public Health and Human Services indicates that a food containing imported morel mushrooms consumed at a single restaurant in Montana may be the exposure of concern. This restaurant is temporarily closed. The product linked to illnesses has been updated to morel mushrooms (suspect), the case count has increased from 13 cases to 30 cases, and sample collection and analysis have been initiated. FDA is assisting in this investigation, but at this time it appears to be a localized issue and no illnesses have been identified outside of this restaurant cluster. This is an ongoing investigation and more information will be provided as it becomes available.
  • An Outbreak Advisory was issued for the outbreak of Salmonella Infantis (ref # 1141) linked to specific lots of General Mills Gold Medal Unbleached and Bleached All Purpose Flour. On 4/28/2023, General Mills, Inc. issued a voluntary recall.
Date
Posted
Ref Pathogen
or
Cause of
Illness
Product(s)
Linked to
Illnesses

(if any)
Total
Case
Count

Status
4/26/2023 1152 Not Yet Identified Morel Mushroom
(suspect)
30 Active
3/29/2023 1141 Salmonella Infantis Raw Flour See
Outbreak
Advisory
Active
3/1/2023 1143 Hepatitis A Virus Frozen Organic
Strawberries
See
Outbreak
Advisory
Active
2/15/2023 1123 Listeria
monocytogenes
Not Yet
Identified
See
CDC
Investigation
Notice
Active

USA – Foodborne Illness Outbreak at Dave’s Sushi Under Investigation; now up to 30 cases.

Food Poisoning News

Bozeman, Montana – The Gallatin City-County Health Department, the Department of Public Health and Human Services (DPHHS), and federal agencies are continuing their investigation into the foodborne illness outbreak at Dave’s Sushi, which has been linked to two recent deaths in the area. The outbreak appears to be isolated to customers who dined at Dave’s Sushi between March 31 and April 17, 2023. The restaurant remains closed, with no further risk to the public.

According to the DPHHS, at least 30 individuals have been identified as being associated with the outbreak, having eaten at the restaurant within the specified time frame. Of these, three individuals experienced severe outcomes, including hospitalizations, and two deaths are being investigated. Autopsy and toxicology results for the deceased individuals are still pending.

Preliminary investigative findings suggest that food containing morel mushrooms may be the source of concern. However, no specific pathogen or toxin has been identified as of yet. Both state and federal partners are continuing to test clinical and food samples.

The DPHHS has determined that the morel mushrooms served at Dave’s Sushi were not distributed to any other restaurants or businesses in Montana. The mushrooms were cultivated in China, shipped to a distributor in California, and subsequently sent to multiple states. At this time, no known associated illnesses in other states have been identified.

Denmark – Salmonella outbreak sickens 16 and kills one in Denmark

Food Safety News

Danish officials are searching for the source of a Salmonella outbreak that has affected 16 people with one recorded death.

During March and April 2023, 16 cases of Salmonella Muenchen have been recorded.

Eight men and eight women are sick. Patients are aged between 10 and 95 with a median of 73 years old. One person has died and seven have been hospitalized.

Ill people live all over the country with eight cases in Hovedstaden, four in Sjælland, three in Midtjylland, and one in Syddanmark.

The Statens Serum Institut (SSI), Danish Veterinary and Food Administration (Fødevarestyrelsen), and DTU Food Institute are investigating the outbreak.

SSI is continuing to whole genome sequence isolates from patients and interview them or their relatives to try and identify a possible source of infection.

Whole genome sequencing of bacteria isolated from patients has found they were very closely related which suggests that there is a common source of infection.

Salmonella Muenchen is a rare type in Denmark with usually only around two to eight cases per year.

USA – Public Health reports 88 people got food poisoning at event – Bacillus cereus

GUELPH TODAY

More than 80 people were left with food poisoning after attending an International Women’s Day event in Orangeville last month, reports Wellington-Dufferin-Guelph Public Health.

Held on March 8, around 244 guests attended the Best Western Plus Orangeville & Suites for an International Women’s Day luncheon; at least 88 of those guests found themselves experiencing vomiting, diarrhea, headaches and nausea after eating contaminated food at the event. 

The primary culprits were the sweet potatoes and quinoa in the chicken bowl, which was prepared by an outside caterer. 

Public Health inspectors found the food was contaminated with the bacillus cereus bacteria, which lives in soil and can easily attach itself to vegetables and fruits. 

USA- General Mills Recalls Four Gold Medal Unbleached and Bleached All Purpose Flour Varieties Dated March 27, 2024 and March 28, 2024 – Salmonella

FDA

Summary

Company Announcement Date:
FDA Publish Date:
Product Type:
Food & Beverages
Bakery Product/Mix
Foodborne Illness
Reason for Announcement:
Potential to be contaminated with Salmonella
Company Name:
General Mills
Brand Name:
Gold Medal
Product Description:
All Purpose Flour, bleached and unbleached

Company Announcement

Consumers reminded that flour is not a ready-to-eat ingredient

MINNEAPOLIS (April 28, 2023) – General Mills today announced a voluntary national recall of two-, five- and 10-pound bags of its Gold Medal Unbleached and Bleached All Purpose Flour with a “better if used by” date of March 27, 2024, and March 28, 2024. The recall is being issued for the potential presence of Salmonella Infantis,which was discovered during sampling of the five-pound bag product.

This recall affects two date codes of Gold Medal Unbleached All Purpose Flour in the five- and ten pound bags and two date codes of Gold Medal Bleached All Purpose Flour in the two- and five-pound bags. All other types of Gold Medal Flour are not affected by this recall.

Consumers are asked to check their pantries and dispose of the product affected by this recall. Consumers who have had to discard products covered by this recall may contact General Mills Consumer Relations at 1-800-230-8103.

Guidance from the Food and Drug Administration(FDA) and the Centers for Disease Control(CDC) warn that consumers should refrain from consuming any raw products made with flour. Salmonella Infantisis killed by heat through baking, frying, sautéing or boiling products made with flour. All surfaces, hands and utensils should be properly cleaned after contact with flour or dough.

This voluntary recall includes the following code dates currently in stores or consumers’ pantries:

Gold Medal Unbleached All Purpose 5LB Flour

Package UPC

000-16000-19610 

Recalled Better if Used by Date 27MAR2024 and 28MAR2024

Gold Medal Unbleached All Purpose 10LB Flour

Package UPC

000-16000-19580

Recalled Better if Used by Date 27MAR2024 and 28MAR2024

Gold Medal Bleached All Purpose 2LB Flour

Package UPC

000-16000-10710

Recalled Better if Used by Date 27MAR2024 and 28MAR2024

Gold Medal Bleached All Purpose 5LB Flour

Package UPC

000-16000-10610

Recalled Better if Used by Date 27MAR2024 and 28MAR2024

Healthy persons infected with Salmonella Infantis, a bacteria, often experience nausea, diarrhea, fever and abdominal pains. The CDC estimates there are 1.2 million cases annually in the U.S. Typically, symptoms start within six hours to six days after infection and last four to seven days. Any consumers concerned about an illness should contact a physician.

About General Mills

General Mills makes the food the world loves. The company is guided by its Accelerate strategy to drive shareholder value by boldly building its brands, relentlessly innovating, unleashing its scale, and standing for good. Its portfolio of beloved brands includes household names such as Cheerios, Nature Valley, Blue Buffalo, Haagen-Dazs, Old El Paso, Pillsbury, Betty Crocker, Yoplait, Annie’s, Wanchai Ferry, Yoki, and more. Headquartered in Minneapolis, Minnesota, General Mills generated fiscal 2022 net sales of $19.0 billion. In addition, the company’s share of non-consolidated joint venture net sales totaled $1.1 billion.

Link to Outbreak Advisory


Company Contact Information

Consumers:
General Mills Consumer Relations
 1-800-230-8103
Media:
General Mills Media Line
 763-764-6364
 Media.Line@genmills.com

Product Photos

Research – A Review of Modern Methods for the Detection of Foodborne Pathogens

MDPI

Abstract

Despite the recent advances in food preservation techniques and food safety, significant disease outbreaks linked to foodborne pathogens such as bacteria, fungi, and viruses still occur worldwide indicating that these pathogens still constitute significant risks to public health. Although extensive reviews of methods for foodborne pathogens detection exist, most are skewed towards bacteria despite the increasing relevance of other pathogens such as viruses. Therefore, this review of foodborne pathogen detection methods is holistic, focusing on pathogenic bacteria, fungi, and viruses. This review has shown that culture-based methods allied with new approaches are beneficial for the detection of foodborne pathogens. The current application of immunoassay methods, especially for bacterial and fungal toxins detection in foods, are reviewed. The use and benefits of nucleic acid-based PCR methods and next-generation sequencing-based methods for bacterial, fungal, and viral pathogens’ detection and their toxins in foods are also reviewed. This review has, therefore, shown that different modern methods exist for the detection of current and emerging foodborne bacterial, fungal, and viral pathogens. It provides further evidence that the full utilization of these tools can lead to early detection and control of foodborne diseases, enhancing public health and reducing the frequency of disease outbreaks.

Research – Human Salmonellosis: A Continuous Global Threat in the Farm-to-Fork Food Safety Continuum

MDPI

Abstract

Salmonella is one of the most common zoonotic foodborne pathogens and a worldwide public health threat. Salmonella enterica is the most pathogenic among Salmonella species, comprising over 2500 serovars. It causes typhoid fever and gastroenteritis, and the serovars responsible for the later disease are known as non-typhoidal Salmonella (NTS). Salmonella transmission to humans happens along the farm-to-fork continuum via contaminated animal- and plant-derived foods, including poultry, eggs, fish, pork, beef, vegetables, fruits, nuts, and flour. Several virulence factors have been recognized to play a vital role in attaching, invading, and evading the host defense system. These factors include capsule, adhesion proteins, flagella, plasmids, and type III secretion systems that are encoded on the Salmonella pathogenicity islands. The increased global prevalence of NTS serovars in recent years indicates that the control approaches centered on alleviating the food animals’ contamination along the food chain have been unsuccessful. Moreover, the emergence of antibiotic-resistant Salmonella variants suggests a potential food safety crisis. This review summarizes the current state of the knowledge on the nomenclature, microbiological features, virulence factors, and the mechanism of antimicrobial resistance of Salmonella. Furthermore, it provides insights into the pathogenesis and epidemiology of Salmonella infections. The recent outbreaks of salmonellosis reported in different clinical settings and geographical regions, including Africa, the Middle East and North Africa, Latin America, Europe, and the USA in the farm-to-fork continuum, are also highlighted.

Research – Severe Streptococcus equi Subspecies zooepidemicus Outbreak from Unpasteurized Dairy Product Consumption, Italy

CDC

Abstract

During November 2021–May 2022, we identified 37 clinical cases of Streptococcus equi subspecies zooepidemicus infections in central Italy. Epidemiologic investigations and whole-genome sequencing showed unpasteurized fresh dairy products were the outbreak source. Early diagnosis by using sequencing technology prevented the spread of life-threatening S. equi subsp. zooepidemicus infections.

Streptococcus equi subspecies zooepidemicus is a β-hemolytic streptococcus expressing Lancefield group C antigen and is 1 of 3 S. equi subspecies. S. equi subsp. zooepidemicus is an opportunistic pathogen that can infect domestic animals, pets, and wildlife (16). Sporadic human cases have been reported (7), characterized by clinical manifestations that vary from meningitis to sepsis. Human infection generally occurs through direct contact with infected animals or by consumption of contaminated unpasteurized milk or other dairy products (810). We report a large S. equi subsp. zooepidemicus outbreak in Italy.

USA – A 2022 Salmonella Outbreak that sickened 88, hospitalizing 32 in 11 states that went unannounced – Why?

Food Poison Journal

In August 2022, the U.S. Food and Drug Administration (FDA), Centers for Disease Control and Prevention (CDC), and state partners conducted an outbreak investigation into a multistate outbreak of Salmonella Typhimurium linked to cantaloupe.

  • Total Illnesses: 88
  • Hospitalizations: 32
  • Deaths: 0
  • Last Illness Onset: September 11, 2022
  • States with Cases: GA (1), IL (5), IN (17), IA (39), KY (3), MI (3), MN (4), MO (2), OH (3), SC (1), WI (10)

The outbreak response investigation found:

  1. In August 2022, CDC notified FDA about a multistate cluster of Salmonella Typhimurium illnesses with a potential signal for melon exposures. The cases were geographically distributed in the U.S. upper Midwest.
  2. The isolates in this cluster of illnesses were within 7 alleles / 11 single-nucleotide polymorphisms (SNPs) of two FDA soil swab samples collected from a 2020 outbreak investigation in Indiana. As a part of the 2022 investigation, FDA and state partners collected multiple samples, but none of the resulting isolates were a definitive match to the 2022 outbreak strain.
  3. FDA’s 2022 traceback investigation identified 11 points of service, of which 8 traced back to a common packinghouse. Although a common packinghouse was identified, there was no convergence to a single shipment of products, and therefore three farms that supplied the common packing house were identified as potential sources of cantaloupe.

As a result of the traceback, FDA conducted investigations in Indiana at all three farms, their common packinghouse and nearby public lands. Salmonella positive environmental samples were found at each location, but none of the resulting Salmonella isolates conclusively matched the outbreak strain by whole genome sequencing (WGS). No cantaloupes were recalled and no public warning was issued due to the implicated products no longer being on the market.

USA – FDA Issues Report Highlighting Salmonella Outbreak in Cantaloupe During Summer of 2022

FDA

Constituent Updates

April 27, 2023

The U.S. Food and Drug Administration (FDA) has released a report on its investigation of the Salmonella Typhimurium outbreak that caused 88 reported illnesses and 32 hospitalizations in the U.S. between July and September 2022. The FDA worked with the U.S. Centers for Disease Control and Prevention (CDC) and state partners to investigate the outbreak, which was linked through epidemiology and traceback to cantaloupe grown in Southwest Indiana during the summer of 2022. The report released today includes an overview of the traceback investigation, investigation results, and various factors that potentially contributed to the contamination of cantaloupe with Salmonella.

As a result of the traceback, FDA conducted investigations in Indiana at three farms, their common packinghouse and nearby public lands. Salmonella positive environmental samples were found at each location, but none of the resulting Salmonella isolates conclusively matched the outbreak strain by whole genome sequencing (WGS). Although the investigation did not result in identification of a specific microbial source or route that resulted in this outbreak, the agency identified Salmonella spp. in on-farm, post-harvest, and off-farm environments.

In light of the investigational findings, FDA highlights the following recommendations and requirements applicable to firms, such as growers of melons and similar produce:

  • Review current conditions and practices to determine whether they are adequate or if additional prevention measures are warranted.
  • Understanding previous land use can help farms identify and address potential sources of pathogens that may affect their farming operations.
  • Be cognizant of and assess risks that may be posed by adjacent and nearby land uses, especially as it relates to the presence of livestock, including poultry, and the interface between farmland, and other agricultural areas.
  • Consider additional tools such as pre-harvest and/or post-harvest sampling and testing of products to help inform the need for specific prevention measures.
  • Poultry manure, while valued for its fertilizer value, is a known reservoir for Salmonella spp.  Proper application of a manure that has been treated with a validated and verified process to reduce pathogens (e.g. composting with time and temperature measurements) can significantly reduce the potential for the integration of Salmonella or other human pathogens into soils (as compared to the use of raw manures).
  • Inspect, maintain, and clean and, when necessary and appropriate, sanitize all food contact surfaces of equipment and tools used as frequently as reasonably necessary to protect against contamination.
  • When appropriate, use EPA-approved products according to the label for cleaning and sanitizing.
  • Inconsistent adherence to or deviation from existing SOPs for cleaning and sanitizing by farms can affect produce safety. Effective communication on farms about SOPs and any changes to those SOPs can help ensure that food safety practices are being followed.
  • Root cause analyses may be useful in identifying for growers how human pathogen sources in the broader agricultural environment may contribute to contamination.
  • Improve traceability through increased digitization, interoperability, and standardization of traceability records which would expedite traceback and help remove contaminated product from the marketplace more quickly, thereby preventing further illnesses. This is not only important for growers, but also critical for shippers, manufactures, and retailers as well, to improve overall traceability throughout the supply chain.

FDA will work in conjunction with the Indiana State Department of Health to increase awareness amongst the melon growing industry of pathogenic environmental strains in the region to develop and promote risk reduction strategies related to melon growing and harvesting to minimize the impact of these strains.

Food safety is a shared responsibility that involves food producers, distributors, manufacturers, retailers, and regulators. Recognizing the interconnection between people, animals, plants, and their shared environment when it comes to public health outcomes, we encourage collaboration among various groups in the broader agricultural community (i.e., produce growers, state government and academia) to address this issue.