Category Archives: Foodborne Illness

Research – Vacuum-Packed Steak Tartare: Prevalence of Listeria monocytogenes and Evaluation of Efficacy of ListexTM P100

Posted on February 19, 2022 by | Leave a comment

MDPI

Steak tartare is a raw, ready-to-eat meal popular in European countries, the safety of which is often discussed due to the risk of foodborne illness. The aim of this study was to determine the prevalence of Listeria monocytogenes in vacuum-packed steak tartare from retailers in the Czech Republic, characterize the strains obtained by typing methods and to evaluate the efficacy of ListexTM P100 against L. monocytogenes artificially inoculated into steak tartare samples. The prevalence of L. monocytogenes was 55% and 17 isolates belonging mostly to serotype 1/2a were obtained. Altogether 11 sequence types and 11 clonal complexes were assigned based on the whole genome sequencing (WGS) signifying the high diversity of L. monocytogenes isolates obtained. Core genome multi-locus sequence typing (cgMLST) did not confirm an epidemiological connection with human cases of listeriosis. The efficacy of ListexTM P100 treatment at concentrations of 108 and 109 PFU/g on artificially inoculated beef steak tartare samples was not efficient. Based on the results of this study, steak tartare from retailers can be considered as a source of L. monocytogenes that remains a challenge to the food industry. View Full-Text

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Posted in Food Illness, Food Microbiology Research, Foodborne Illness, Illness, Listeria, Listeria monocytogenes, Research

Research – Norovirus behind a third of outbreaks in Finland

Posted on February 18, 2022 by | Leave a comment

Food Safety News

Food Borne Illness - Norovirus -CDC Photo

Norovirus was the main cause of foodborne outbreaks in Finland from 2017 to 2019, according to figures published recently by the Finnish Food Authority (Ruokavirasto).

About 2,900 people were reported to have fallen ill in 162 foodborne outbreaks with 110 hospitalizations and nine deaths.

Norovirus caused 57 foodborne outbreaks including two in 2018 through meals at medical and elderly care institutions with 292 and 110 cases. The most commonly reported vectors were fish and fish products, including shellfish and mussels. These caused 14 outbreaks.

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Posted in food bourne outbreak, Food Illness, Food Micro Blog, Food Microbiology, Food Microbiology Blog, Food Microbiology Research, Food Microbiology Testing, Food Virus, Foodborne Illness, foodborne outbreak, foodbourne outbreak, Illness, microbial contamination, Microbiological Risk Assessment, Microbiology, Microbiology Investigations, Norovirus, outbreak, Virus

Turkey – Norovirus behind mass hospitalizations in Turkey’s Bilecik – Water Contamination

Posted on February 18, 2022 by | Leave a comment

Daily Sabah

Authorities announced that norovirus is the culprit behind the hospitalization of hundreds of people in the western province of Bilecik in recent weeks. An investigation found out that the virus, whose symptoms include vomiting, diarrhea and stomachache, originated from city’s drinking water. Health Ministry crews discovered that unfiltered water from a spring had contaminated drinking water supplies to the city of more than 228,000 people.

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Posted in Contaminated water, food bourne outbreak, Food Illness, Food Micro Blog, Food Microbiology, Food Microbiology Blog, Food Microbiology Research, Food Microbiology Testing, Food Virus, Foodborne Illness, foodborne outbreak, foodbourne outbreak, Illness, microbial contamination, Microbiological Risk Assessment, Microbiology, Microbiology Investigations, Norovirus, outbreak, Virus, Water, water microbiology, Water Safety

South Africa – At least 109 pupils treated for suspected food poisoning

Posted on February 15, 2022 by | Leave a comment

Herald live

At least 109 pupils from Ikamva Lesizwe Public School in Kenton-on-Sea received medical treatment on Monday afternoon for suspected food poisoning, believed to have been caused by the umphokoqo (maize meal with sour milk) they ate for lunch.

The pupils started vomiting and experiencing diarrhoea allegedly after eating the meal served at their school during the lunch break as part of the school nutrition programme.

Provincial Education Spokesperson, Malibongwe Mtima says they are investigating the incident.

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Posted in Decontamination Microbial, Food Illness, Food Micro Blog, Food Microbiology, Food Microbiology Blog, Food Microbiology Testing, Food Poisoning, Foodborne Illness, Illness, microbial contamination, Microbiological Risk Assessment, Microbiology, Microbiology Investigations, Poisoning

Research – Multistate Outbreak Investigation of Salmonella Infections Linked to Kratom: A Focus on Traceback, Laboratory, and Regulatory Activities

Posted on February 12, 2022 by | Leave a comment

Journal of Food Protection

kswfoodworld.com

During the spring of 2018, the U.S. Food and Drug Administration (FDA), U.S. Centers for Disease Control and Prevention (CDC), states and local public health agencies responded to a multistate outbreak of gastrointestinal illnesses caused by multiple   Salmonella   serovars and associated with consumption of kratom, a product harvested from a tropical tree native to Southeast Asia. The outbreak included 199 case-patients reported by 41 U.S. states, with illness onset dates ranging from January 11, 2017 to May 8, 2018, leading to 54 hospitalizations, and no deaths. Case-patients reported purchasing kratom products from physical and online retail points of service (POS). Products distributed to 16 POS where 24 case-patients from 17 states purchased kratom were selected for traceback investigation. Traceback revealed that the kratom was imported from several countries, the most common being Indonesia. Local and state officials collected product samples from case-patients and retail POS. The FDA collected 76 product samples from POS and distributors, of which 42 (55%) tested positive for   Salmonella  . The positive samples exhibited a wide range of pulsed field gel electrophoresis (PFGE) patterns and whole genome sequence (WGS) genetic heterogeneity, and a total 25 of 42 (60%) yielded at least one isolate indistinguishable from one or more outbreak-related clinical isolates. While it does not exclude a possibility of a single contamination source, the extent of genetic diversity exhibited by the   Salmonella   isolates recovered from product samples and a lack of traceback convergence, suggested that kratom was widely contaminated across multiple sites from which it was grown, harvested, and packaged. As a result of the contamination, kratom products were recalled by numerous firms (both voluntarily and mandatory). Epidemiologic, traceback, and laboratory evidence supported the conclusion that kratom products were associated with illnesses.

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Posted in Decontamination Microbial, food bourne outbreak, Food Illness, Food Micro Blog, Food Microbiology, Food Microbiology Blog, Food Microbiology Research, Food Microbiology Testing, Foodborne Illness, foodborne outbreak, foodbourne outbreak, Illness, microbial contamination, Microbiological Risk Assessment, Microbiology, Microbiology Investigations, outbreak, PFGE, Research, Salmonella, WGS

India – 15 kids suffer ‘food poisoning’ in Andhra, adulterated food at Anganwadi

Posted on February 11, 2022 by | Leave a comment

New Indian Express

NELLORE: At least 15 children fell sick after they reportedly ate adulterated food at an Anganwadi in Podalakuru town of Nellore district. According to reports, the children were suffering from diarrhoea since Wednesday evening. Parents staged a demonstration at the Anganwadi and blamed the negligent attitude of the staff for delaying treatment to their children.

They alleged that the children began vomiting and fell sick after eating food provided at the Anganwadi. They said the children were admitted to a local hospital for treatment where doctors confirmed that they fell sick due to the adulterated food they ate. The children are getting treated at various hospitals in Podalakuru and Nellore city. Sources said their condition is stable now.

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Posted in Decontamination Microbial, Food Illness, Food Micro Blog, Food Microbiology, Food Microbiology Blog, Food Microbiology Testing, Food Poisoning, Foodborne Illness, Illness, microbial contamination, Microbiological Risk Assessment, Microbiology, Microbiology Investigations, Poisoning

Research – Escherichia coli O103 outbreak associated with minced celery among hospitalized individuals in Victoria, British Columbia, 2021

Posted on February 11, 2022 by | Leave a comment

PHAC

Abstract

Background: In April 2021, a Shiga toxin-producing Escherichia coli (E. coli) (STEC) O103 outbreak was identified among patients at two hospitals in Victoria, British Columbia (BC). The objective of this study is to describe this outbreak investigation and identify issues of food safety for high-risk products prepared for vulnerable populations.

Methods: Confirmed cases of E. coli O103 were reported to the Island Health communicable disease unit. The provincial public health laboratory conducted whole genome sequencing on confirmed case isolates, as per routine practice for STEC in BC. Exposure information was obtained through case interviews and review of hospital menus. Federal and local public health authorities conducted an inspection of the processing plant for the suspect source.

Results: Six confirmed cases of E. coli O103 were identified, all related by whole genome sequencing. The majority of cases were female (67%) and the median age was 61 years (range 24–87 years). All confirmed cases were inpatients or outpatients at two hospitals and were exposed to raw minced celery within prepared sandwiches provided by hospital food services. A local processor supplied the minced celery exclusively to the two hospitals. Testing of product at the processor was infrequent, and chlorine rinse occurred before mincing. The spread of residual E. coli contamination through the mincing process, in addition to temperature abuse at the hospitals, are thought to have contributed to this outbreak.

Conclusion: Raw vegetables, such as celery, are a potential source of STEC and present a risk to vulnerable populations. Recommendations from this outbreak include more frequent testing at the processor, a review of the chlorination and mincing process and a review of hospital food services practices to mitigate temperature abuse.

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Posted in E.coli O103, food bourne outbreak, food contamination, food handler, Food Hazard, Food Hygiene, Food Illness, Food Inspections, Food Micro Blog, Food Microbiology, Food Microbiology Blog, Food Microbiology Research, Food Microbiology Testing, Food Pathogen, Food Poisoning, food recall, Food Safety, Food Safety Alert, Food Testing, Food Toxin, Foodborne Illness, foodborne outbreak, foodbourne outbreak, Illness, O103, outbreak, Research, STEC, STEC E.coli

USA – Gastrointestinal illness outbreak reported at Issaquah restaurant

Posted on February 10, 2022 by | Leave a comment

Komo News

ISSAQUAH, Wash. — King County Public Health is investigating an outbreak of gastroenteritis associated with an Issaquah restaurant.

Health officials said five people from one party reported becoming ill a few days after after eating food delivering from Chinese Taste on Jan. 29.

The symptoms and timing of illness suggest a bacterial toxin such as Bacillus cereus or Clostridium perfringens, health officials said.

The exact food or drink that caused the illness has not been identified, but health officials said it is not uncommon for outbreaks associated with a bacterial toxin.

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South Africa – Court overturns decision in Tiger Brands Listeria case

Posted on February 8, 2022 by | Leave a comment

Food Safety News

How the deadly strain of listeriosis was traced to Tiger Brands' Enterprise polony factory

A court in South Africa has overturned a previous decision to make companies divulge information in relation to a deadly Listeria outbreak in 2017 and 2018.

The Supreme Court of Appeal ruling reverses a Gauteng High Court verdict on whether subpoenas issued against third parties were relevant to the class-action. Tiger Brands is facing a class-action following an outbreak of listeriosis between January 2017 and September 2018 that sickened more than 1,050 people, killing 218.

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Posted in Death, food bourne outbreak, food death, Food Illness, Food Microbiology Research, Food Poisoning Death, Foodborne Illness, foodborne outbreak, foodbourne outbreak, Illness, Listeria, Listeria monocytogenes, outbreak, Research

EU – Multi-country outbreak of Salmonella Enteritidis sequence type (ST)11 infections linked to eggs and egg products

Posted on February 8, 2022 by | Leave a comment

EFSA

Abstract

On 2 September 2021, France reported an increase in Salmonella Enteritidis ST11 infections. By 11 January 2022, 272 confirmed cases had been reported in five European Union/European Economic Area (EU/EEA) countries and the United Kingdom (UK): Denmark (n=3), France (n=216), the Netherlands (n=12), Norway (n=7), Spain (n=22), and the UK (n=12) in 2021. Two deaths were recorded in adult men. Twenty-five cases were hospitalised. Sixty cases reported consumption of eggs/egg products.

Some cases reported in France in 2021 had visited restaurants serving eggs distributed by a common supplier, Spanish Packing Centre A. The eggs originated from three Spanish farms, one testing positive for the outbreak strain. Fresh table eggs from the farms linked to the outbreak were withdrawn and redirected for use in heat-treated egg products. No other countries received eggs from the same farms via Packing Centre A during summer 2021. Therefore, the source of infection for cases in late 2021 and in countries other than Spain and France could not be established.

This 2021 outbreak is linked microbiologically to a historical cross-border outbreak reported by the Netherlands in 2019. Eggs consumed by cases in the Dutch outbreak were traced back to a Spanish farm, but it was not possible to identify an epidemiological link with the 2021 outbreak. This suggests a wide distribution of the outbreak strain that could affect the food supply chain and/or earlier steps in the production chain. There may be multiple heterogeneous sources of S. Enteritidis ST11, and the outbreak strain could also be circulating at other farms, inside or outside Spain.

The risk of new infections caused by the outbreak strain and contaminated eggs remains high in the EU/EEA. It is therefore important to foster cross-sectoral investigations of contaminations in the egg supply chain in countries where S. Enteritidis ST11 has been detected.

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