Category Archives: outbreak

UK – Update on reporting of non-O157 STEC infections and an outbreak of Shiga toxin-producing E. coli (STEC) O145 in the UK, February 2024

Posted on July 26, 2024 by | Leave a comment

Gov UK

In December 2023 the UK Health Security Agency (UKHSA) reported (1) unseasonably high levels of Shiga toxin-producing Escherichia coli other than serogroup O157 (non-O157 STEC) case notifications during October to December of that year. Since then, reporting has returned to levels comparable with previous years. Investigations into the drivers of that unseasonal increase in reports of non-O157 STEC continue, as well as into individual outbreaks of STEC that were reported in the December 2023 report.

The investigations into the concurrent foodborne STEC O145: H28 outbreak associated with unpasteurised cheese – being undertaken by UKHSA, the Local Authority (LA) Environmental Health Team, Public Health Scotland (PHS), Food Standards Agency (FSA), Food Standards Scotland (FSS) and the Animal Plant Health Agency (APHA) – are nearly completed.

In total 36 confirmed cases and 1 probable case have been reported across England (n=29) and Scotland (n=8) since late July 2023, with most cases falling ill in November 2023. The last reported primary case had a symptom onset date of 23 December 2023 (see figure below).

Based on epidemiological, food chain and microbiological investigations, the vehicle was identified as an unpasteurised cheese produced in North West England. The food business concerned carried out a product withdrawal and recall on 24 December 2023 (2) and updated on 27 December 2023 (3) which ensured all recalled products were removed from sale in a timely manner.

Subsequent work between the food business, the LA Environmental Health team and the FSA allowed refinement of the product withdrawal and recall notice to include only the batches likely associated with illness, which resulted in a further update of the product withdrawal and recall by the food business on 9 February 2024 (4).

The FSA and FSS both published updated Product Recall Information Notices (PRIN’s) on 24 (2) and 27 December (3), and again on 9 February (4), with supporting news stories to amplify messaging about each of the product recalls.

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Posted in E.coli O145, E.coli O145:H28, E.coli O157, E.coli O157:H7, food bourne outbreak, Food Illness, Food Microbiology Research, Foodborne Illness, Foodborne Illness Death, foodborne outbreak, foodbourne outbreak, Illness, outbreak, Research, STEC, STEC E.coli

Kota Kinabalu – SK Pulau Gaya food poisoning cases rise to 103

Posted on July 25, 2024 by | Leave a comment

Daily Express

The State Health Department has recorded a total of 103 cases of food poisoning involving primary school students on Gaya Island off here on July 22.

“The affected pupils, aged between six and 12, experienced symptoms including vomiting, diarrhoea, and abdominal pain,” said State Health Director Datuk Dr. Asits Sanna in a statement Wednesday.

He said eight cases required hospitalisation, while 95 were treated as outpatients. All cases are reported to be in stable condition, with no fatalities.

Initial investigations showed that the pupils consumed nasi lemak at about 9.50am on July 22, however, investigation is ongoing. Previously, 91 cases were reported by education authorities.

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Posted in food bourne outbreak, Food Poisoning, Food Poisoning Illness, foodborne outbreak, foodbourne outbreak, outbreak, Poisoning

USA – Hamburger E. coli O157 Outbreak sickens 13 with 1 death in Montana

Posted on July 25, 2024 by | Leave a comment

Food Poison Journal

The Flathead City-County Health Department (FCCHD), the Montana Department of Public Health and Human Services (DPHHS), and other local health departments, are working together to investigate an E.coli O157:H7 outbreak originating in Flathead County.

To date, the investigation has identified at least 13 individuals associated with the outbreak. Many of the cases experienced moderate to severe symptoms, and one death has occurred. Preliminary investigative findings indicate that ground beef containing the E.coli bacteria may be the exposure of concern. State partners continue to test clinical and food samples for laboratory confirmation.mp

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Posted in E.coli O157, E.coli O157:H7, food bourne outbreak, Food Illness, Foodborne Illness, Foodborne Illness Death, foodborne outbreak, foodbourne outbreak, Illness, outbreak, STEC, STEC E.coli, Uncategorized

USA – FDA – Core Investigation Table

Posted on July 25, 2024 by | Leave a comment

FDA

What’s New

  • For the outbreak of Salmonella Irumu (ref #1235) linked to a not yet identified product, the case count has increased from 29 to 31.

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Posted in CORE Investigation Table, FDA, food bourne outbreak, foodborne outbreak, foodbourne outbreak, outbreak, Salmonella

USA – Salmonella Sickened 171, the Biggest Outbreak From Raw Milk in Years

Posted on July 22, 2024 by | Leave a comment

New York Times

Experts say the number of people affected in the outbreak, linked to Raw Farm milk, could be far higher.

Interesting article at the link above.

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Posted in food bourne outbreak, Food Illness, Foodborne Illness, foodborne outbreak, foodbourne outbreak, Illness, outbreak, Raw Milk, Salmonella

USA- Deadly Deli: 28 with Listeria with 2 dead linked to unnamed Deli Counter Meats

Posted on July 22, 2024 by | Leave a comment

Food Poison Journal

As of July 19, 2024, a total of 28 people infected with the outbreak strain of Listeria have been reported from 12 states . Sick people’s samples were collected from May 29, 2024, to July 5, 2024. Of 28 people with information available, all have been hospitalized. One person got sick during their pregnancy and remained pregnant after recovering. Two deaths have been reported, 1 in Illinois and 1 in New Jersey.

The true number of sick people in this outbreak is likely higher than the number reported, and the outbreak may not be limited to the states with known illnesses. This is because some people recover without medical care and are not tested for Listeria. In addition, recent illnesses may not yet be reported as it usually takes 3 to 4 weeks to determine if a sick person is part of an outbreak.

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

USA – Norovirus outbreak associated with Sammamish Cafe & Spirits

Posted on July 22, 2024 by | Leave a comment

King County

Public Health investigated an outbreak of norovirus associated with Sammamish Cafe & Spirits. We identified multiple sick restaurant staff who reported symptoms consistent with norovirus. Norovirus can spread through multiple contaminated food items, environmental surfaces, and from person to person.

This outbreak appears to be over.

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Posted in food bourne outbreak, food contamination, Foodborne Illness, foodborne outbreak, foodbourne outbreak, Illness, Norovirus, outbreak

Research – Risk Assessment Predicts Most of the Salmonellosis Risk in Raw Chicken Parts is Concentrated in Those Few Products with High Levels of High-Virulence Serotypes of Salmonella

Posted on July 20, 2024 by | Leave a comment

Science Direct

Abstract

Salmonella prevalence declined in U.S. raw poultry products since adopting prevalence-based Salmonella performance standards, but human illnesses did not reduce proportionally. We used Quantitative Microbial Risk Assessment (QMRA) to evaluate public health risks of raw chicken parts contaminated with different levels of all Salmonella and specific high- and low-virulence serotypes. Lognormal Salmonella level distributions were fitted to 2012 USDA-FSIS Baseline parts survey and 2023 USDA-FSIS HACCP verification sampling data. Three different Dose-Response (DR) approaches included (i) a single DR for all serotypes, (ii) DR that reduces Salmonella Kentucky ST152 virulence, and (iii) multiple serotype-specific DR models. All scenarios found risk concentrated in the few products with high Salmonella levels. Using a single DR model with Baseline data (μ = −3.19, σ = 1.29 Log CFU/g), 68% and 37% of illnesses were attributed to the 0.7% and 0.06% of products with >1 and >10 CFU/g Salmonella, respectively. Using distributions from 2023 HACCP data (μ = −5.53, σ = 2.45), 99.8% and 99.0% of illnesses were attributed to the 1.3% and 0.4% of products with >1 and >10 CFU/g Salmonella, respectively. Scenarios with serotype-specific DR models showed more concentrated risk at higher levels. Baseline data showed 92% and 67% and HACCP data showed >99.99% and 99.96% of illnesses attributed to products with >1 and >10 CFU/g Salmonella, respectively. Regarding serotypes using Baseline or HACCP input data, 0.002% and 0.1% of illnesses were attributed to the 0.2% and 0.4% of products with >1 CFU/g of Kentucky ST152, respectively, while 69% and 83% of illnesses were attributed to the 0.3% and 0.6% of products with >1 CFU/g of Enteritidis, Infantis, or Typhimurium, respectively. Therefore, public health risk in chicken parts is concentrated in finished products with high levels and specifically high levels of high-virulence serotypes. Low-virulence serotypes like Kentucky contribute few human cases.

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Posted in food bourne outbreak, Food Illness, Food Microbiology Research, Foodborne Illness, foodborne outbreak, foodbourne outbreak, FSIS USDA, Illness, outbreak, Research, Salmonella, USDA

Canada – Hundreds of Norovirus cases now linked to B.C. oysters, PHAC says

Posted on July 19, 2024 by | Leave a comment

CTV News

Food Borne Illness - Norovirus -CDC Photo

The norovirus outbreak involving raw oysters harvested in B.C. has infected almost 300 people, the Public Health Agency of Canada announced Thursday.

The agency says as of Wednesday, there had been 279 cases(opens in a new tab) of norovirus linked to B.C. oysters, with the vast majority of those cases (262) found in B.C. residents. 

An additional 15 cases have been confirmed in Ontario, as well as one each in Alberta and Saskatchewan.

According to the PHAC, recalls of affected oysters were issued on Feb. 18, March 20, March 23 and March 27

 

 

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Posted in food bourne outbreak, Food Illness, Foodborne Illness, foodborne outbreak, foodbourne outbreak, Illness, Norovirus, Norovirus Oysters, outbreak

USA – Investigations of Foodborne Illness Outbreaks

Posted on July 18, 2024 by | Leave a comment

FDA

What’s New

  • For the outbreak of Salmonella Irumu (ref #1235) linked to a not yet identified product, the case count has increased from 26 to 29.
  • For the outbreak of Salmonella Typhimurium illnesses (ref #1234) linked to a not yet identified product, the case count has increased from 80 to 87.
Date
Posted		 Ref Pathogen
or
Cause of
Illness		 Product(s)
Linked to
Illnesses
(if any)		 Total
Case
Count
Status
7/10/

2024

 1235 Salmonella
Irumu		 Not Yet
Identified		 29 Active
6/19/

2024

 1234 Salmonella
Typhimurium		 Not Yet
Identified		 87 Active
6/12/

2024

 1233 Not Yet
Identified		 Chocolate,
Gummies,
Cones		 See
Advisory		 Active
5/22/

2024

 1227 Salmonella
Africana
&
Braenderup		 Cucumbers See
Advisory		 Active
5/22/

2024

 1232 Listeria
monocytogenes		 Not Yet
Identified		 2 Active

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Posted in CORE Investigation Table, food bourne outbreak, Food Illness, Food Micro Blog, Food Microbiology, Food Microbiology Blog, Food Microbiology Testing, Food Pathogen, Food Safety, Food Safety Alert, Food Safety Management, Food Safety Regulations, Foodborne Illness, foodborne outbreak, foodbourne outbreak, Illness, outbreak, Salmonella