Category Archives: Shigatoxin

Research – Response to Questions Posed by the Food and Drug Administration Regarding Virulence Factors and Attributes that Define Foodborne Shiga Toxin–Producing Escherichia coli (STEC) as Severe Human Pathogens

Journal of Food Protection

EXECUTIVE SUMMARY

The National Advisory Committee on Microbiological Criteria for Foods (NACMCF or Committee) was asked to report on (i) what is currently known about virulence and pathogenicity of Shiga toxin–producing Escherichia coli (STEC) and how they cause illness in humans; (ii) what methods are available to detect STEC and their specific virulence factors; and most importantly (iii) how to rapidly identify foodborne STEC that are most likely to cause serious human disease. Individual working groups were developed to address the charge questions, as well as to identify gaps and give recommendations for additional data or research needs. A complete list of Committee recommendations is in Chapter 4.

Guam – Shigellosis outbreak in Guam: An update

Outbreak News Today

Shigellosis outbreak in Guam: An update

In a follow-up on the outbreak of Shigella infections in Guam, The Department of Public Health and Social Services (DPHSS) reports the outbreak continues to grow.


In 2019, in only four months, Guam has already reached one-half of the total number of cases from all of last year. In 2018, a total of 29 cases of Shigellosis were reported (with 23 cases or 79% confirmed).   So far in 2019, a total of 15 cases have been reported (with 53% confirmed).

Approximately two-thirds (66.6%) of the 2019 cases involved children who have been taken to the emergency rooms for treatment with some being hospitalized.

Five of the 15 cases are children less than five years old; another five cases are among children less than 15 years old and the other five are adults.

The public is asked to be vigilant about hygiene and sanitation, especially for people living in crowded housing situations or housing where there is a lack of indoor plumbing and where contact with faecal matter is possible.

Ireland – Recall of Saint Marcellin Unpasteurised Cheeses due to the Possible Presence of Shiga toxin producing Escherichia coli O26

FSAI

Message:

Fromagerie Alpine is recalling all batches of the below Saint-Marcellin unpasteurised cheeses due to the possible presence of Shiga toxin-producing Escherichia coli (STEC) O26. Point-of-sale recall notices will be displayed in retailers that sold the affected batches advising consumers not to eat the affected cheese.

Nature Of Danger:

Shiga toxin-producing Escherichia coli (STEC), also known as Verocytotoxigenic E. coli (VTEC), are a specific group of E. coli.  While most E. coli are harmless and live in the intestines of healthy humans, STEC produce a powerful toxin which can cause severe illness. Symptoms include abdominal cramps and diarrhoea which is sometimes bloody. Usually there is little or no fever, and patients recover within 5 to 10 days.  In some people however, particularly children under 5 years of age and the elderly, the infection can cause a complication called haemolytic uraemic syndrome (HUS), in which the red blood cells are destroyed and the kidneys can stop working properly.  The time between the initial infection and the first symptoms appearing is typically between 3 and 4 days but can range between 1 and 8 days.

Implicated Cheeses
Photo of Saint Marcellin Cheeses

Ireland – Recall of Tesco Finest St Felicien Du Dauphine Unpasteurised Cheese due to the Possible Presence of Shiga toxin-producing E. coli

FSAI

Message:

Tesco is recalling all batches of Tesco Finest St Félicien Du Dauphiné unpasteurised cheese, due to the possible presence of Shiga toxin-producing Eschericia coli.  Point-of-sale recall notices will be displayed in Tesco stores advising consumers not to eat the affected cheese.

Nature Of Danger:

Shiga toxin-producing Escherichia coli (STEC), also known as Verocytotoxigenic E. coli (VTEC), are a specific group of E. coli.  While most E. coli are harmless and live in the intestines of healthy humans, STEC produce a powerful toxin which can cause severe illness. Symptoms include abdominal cramps and diarrhoea which is sometimes bloody. Usually there is little or no fever, and patients recover within 5 to 10 days.  In some people however, particularly children under 5 years of age and the elderly, the infection can cause a complication called haemolytic uraemic syndrome (HUS), in which the red blood cells are destroyed and the kidneys can stop working properly.  The time between the initial infection and the first symptoms appearing is typically between 3 and 4 days but can range between 1 and 8 days.

Tesco Cheese

 

RASFF Alerts – STEC E.coli – Raw Milk Cheese

RASFF-Logo

RASFF -shigatoxin-producing Escherichia coli (presence /25g) in raw milk cheese from France in Germany

UK – Bride ‘left unable to walk after contracting food poisoning’ on 5-star Egypt honeymoon

The Mirror

Shigella - kswfoodworld

Image CDC

 

Cristina Calafateanu, 24, now needs a walking frame to get about after a gastric bug she caught after staying at the Baron Palace Sahl Hasheesh in Hurghada, booked through Thomas Cook, caused her to develop arthritis.

Cristina Calafateanu says she and husband Liviu suffered diarrhoea and severe stomach cramps just three days into their week-long stay in Egypt.

When she returned to the UK she was diagnosed with bacterial infection Shigella – before medics told her the illness had triggered a form of arthritis.

Research – Traveler’s diarrhoea: Researchers develop 3-in-1 vaccine

Outbreak News Today 

 

A first-ever vaccine designed to deliver a one-two-three punch against the main causes of traveller’s diarrhea worldwide may result from new research published by a University of Guelph chemist.

Prof. Mario Monteiro says his novel three-in-one approach to developing a new vaccine could also save lives in developing countries, where it’s estimated that these three common pathogens kill more than 100,000 children under age five each year.

His research was recently published in the journal Vaccine.

The paper discusses Monteiro’s so-called conjugate vaccine that yokes together proteins from pathogenic E. coli with sugars from Shigella and Campylobacter jejuni. All three bugs are major causes of bacterial diarrhea globally.

Poland – Shigella sonnei outbreak linked to Rainbow Gathering

Outbreak News Today 

Shigella - kswfoodworld

Image CDC

European health officials are reporting a Shigella sonnei outbreak among participants of a Rainbow Gathering in the south-east of Poland.

Between 5 and 10 August 2018, 45 participants presented with gastroenteritis symptoms, 14 of these tested positive for Shigella sonnei. The event took place between 13 July and 11 August and so it is likely that most participants, which come from many countries within the EU, have now left the area.

Last year, a typhoid outbreak was linked to the European Rainbow gathering that took place in Tramonti di Sopra, Friuli-Venezia Giulia region, Italy.

 

 

Research – Foods, fish and Salmonellosis

African Journal of Microbiology 

 

Foodborne diseases are those caused by the consumption of water and food contaminated by different causal agents such as: viruses, bacteria, parasites, toxins, among others, being considered an important public health problem global due to its incidence and mortality and for several years for the isolation of microorganisms that cause these diseases resistant to antimicrobials. Salmonella species is considered a food pathogen frequently responsible for infectious outbreaks through the consumption of contaminated food, also presenting resistance to different antimicrobials. Fishery products are recognized as an important source of food, nutrition, income and a source of livelihood for a large part of the world’s population. However, fish is also considered to be a vehicle that transmits different pathogens (Salmonella spp., Shigella species, Escherichia coli, Listeria monocytogenes among others) mainly due to inadequate hygiene practices along the food chain. The purpose of this article is to show in a general way a perspective of foodborne diseases, specifically those caused by bacteria of the genus Salmonella spp., through fish such as tilapia, the control and prevention measures of these pathogens in food, the phenomenon of resistance to antimicrobials by these bacteria isolated in food and fish around the world that exacerbates the problem in food safety and public health.

USA – Charlotte: Dozens seek medical care for Shigella linked to birthday party cookout

Outbreak News Today 220px-Shigella_stool

Mecklenburg County, NC health officials say that nearly half of the 100 attendees of an East Charlotte cookout last weekend have sought medical care for “complaints of stomach problems”.