Category Archives: STEC

Ireland- Increase in food poisoning cases

Irish Health 

 

People are being urged to take extra care when handling and preparing food as there has been an increase in E.coli infections in recent weeks.

E.coli is a bacterium that lives in the intestines of healthy humans and animals. Verocytotoxigenic Escherichia coli (VTEC) is a particular type of E.coli that lives in the gut of healthy sheep and cattle. VTEC is a common cause of food poisoning, which can lead to symptoms such as bloody diarrhoea and abdominal cramps.

While patients usually recover within five to 10 days, some people, especially young children and older people, can suffer a complication called haemolytic uraemic syndrome (HUS), in which the red blood cells are destroyed and the kidneys fail. This happens in 5-8% of cases.

According to the Health Protection Surveillance Centre (HPSC), almost 100 cases of VTEC have been notified over the last 10 days, which is three times higher than the figure for this time last year.

It is reminding people of the importance of always washing your hands before and after handling food, and always washing fruit and vegetables before consuming.

It is also reminding people of the importance of ensuring that minced meats are cooked all the way through.

“Eating meat, especially minced beef, that has not been thoroughly cooked all the way through to kill these VTEC bugs can cause food poisoning. Therefore, to ensure that minced meat burgers are safe to eat, they should be cooked to a core temperature of 75°C.

“VTEC can also be found in the stools of an infected person and can be passed from person to person if hygiene or hand-washing habits are inadequate. This is particularly common among toddlers who are not toilet trained. Family members and playmates of these children are at high risk of becoming infected,” the HPSC said.

According to the HSE’s assistant national director of public health, Dr Kevin Kelleher, while investigations have not identified a specific reason for the increase in VTEC infections, the current good weather probably has a role to play.

“We would like to remind people to be careful about food safety during this heatwave to protect themselves against food poisoning. This hot weather provides the right conditions for bacteria such as VTEC to grow and multiply on foods, which can lead to high numbers of cases of food poisoning in adults and children.

“Not washing hands after handling raw meat, not washing fruits and vegetables and undercooking minced meats, such as beef burgers, are common ways of getting food poisoning at this time of year,” he commented.

The HPSC and Safefood recommends four simple steps to reduce the risk of food poisoning:

-Clean – always wash your hands before and after preparing, handling and eating food, after using the toilet or after playing with animals
-Cook – make sure that food is cooked all the way through in order to destroy any harmful bacteria that might be present
-Chill – keep food cool in order to prevent bad bacteria from growing. Make sure that your fridge is at the correct temperature to keep cold foods chilled (5°C or below)
-Separate – to prevent cross-contamination, always separate raw and cooked foods during storage and cooking and never let raw food, for example raw meat, come into contact with ready-to-eat foods, such as salads.

Canada – Food Recall Warning – Certain extra lean ground beef products recalled due to E. coli O157

CFIA

Recall details

Ottawa, June 29, 2018 – The Butcher’s Blend is recalling certain extra lean ground beef products from the marketplace due to possible E. coli O157 contamination. Consumers should not consume the recalled products described below.

Recalled products

Brand Name Common Name Size Code(s) on Product UPC
None Extra Lean Ground Beef Approx. 1 lb None – Sold by The Butcher’s Blend at the Western Fair District Farmer’s Market on June 16, 2018 None
Mitchell’s Butcher’s Blend / Old East Village Grocer Extra Lean Ground Beef Approx. 1 lb Best Before JUN 23/18 Starts with 0 200150
Mitchell’s Butcher’s Blend / Old East Village Grocer Extra Lean Ground Beef Approx. ½ lb Best Before JUN 23/18 Starts with 0 200150

RASFF Alert – STEC E.coli – Chilled Beef

kswfoodworld food safety poisoning

RASFF-shigatoxin-producing Escherichia coli (stx2+; eae- /25g) in chilled beef from Belgium in Belgium

USA – FDA Investigating Multistate Outbreak of E. coli O157:H7 Infections Linked to Romaine Lettuce from Yuma Growing Region

FDA Eurofins Food Testing UK

Update

The FDA, along with CDC and state partners, initiated an environmental assessment in the Yuma growing region to further investigate potential sources of contamination linked to this outbreak.

Samples have been collected from environmental sources in the region, including water, soil, and cow manure. Evaluation of these samples is ongoing.

To date, CDC analysis of samples taken from canal water in the region has identified the presence of E. coli 0157:H7 with the same genetic finger print as the outbreak strain. We have identified additional strains of Shiga-toxin producing E. coli in water and soil samples, but at this time, the samples from the canal water are the only matches to the outbreak strain.

Analysis of additional samples is still ongoing, and any new matches to the outbreak strain will be communicated publicly and with industry in the region.

Identification of the outbreak strain in the environment should prove valuable in our analysis of potential routes of contamination, and we are continuing our investigation in an effort to learn more about how the outbreak strain could have entered the water and ways that this water could have come into contact with and contaminated romaine lettuce in the region.

Research- Researchers warn against raw milk, cheese after testing dairies

Food Safety News 

Research recently published by scientists in The Netherlands shows that E. coli and Campylobacter bacteria are so common on goat and sheep dairy farms that pasteurization is necessary to prevent contamination of raw milk and products made with it.The Dutch National Institute for Public Health and the Environment and the Dutch Food and Consumer Product Safety Authority joined forces for the project. The government agencies annually investigate how common pathogens of zoonoses are on different types farms. Cattle, meat pig and laying hen operations have already been examined.

For the recent report, scientists looked at 181 dairy goat farms and 24 dairy sheep farms. Shiga-toxin-producing E. coli (STEC) and Campylobacter bacteria was found on most of the animals. The pathogens were also found among farmers and their family members.

“STEC appeared on virtually all the farms studied,” according to the research report.

“Campylobacter has been demonstrated in one out of three goat farms (33 percent) and almost all sheep farms (96 percent).”

Listeria was less common. It was found on about 9 percent of the goat farms and 17 percent of the sheep farms. It was not found in farmers and their families. The percentage of farms with Listeria is relevant, the researchers wrote, because “unpasteurized soft cheese is the most important source of Listeria infection in humans.”

RASFF Alert – STEC E.coli – Frozen Herb Mix with Parsley

kswfoodworld food safety poisoning

RASFF-shigatoxin-producing Escherichia coli (stx1+, stx2+ /25g) in frozen herb mixes containing parsley from Germany in Germany

Holland – Research on pathogens in dairy goat and dairy sheep farms

RIVM 

Synopsis

Animals can carry pathogens that can cause disease in humans (zoonoses). In 2016, the RIVM and the NVWA investigated whether dairy goats and dairy sheep carry such pathogens; sometimes this is also done for livestock farmers, their family members and employees. These pathogens usually cause diarrhoea but sometimes the infections are more severe.

Research shows that a few pathogens occur often on dairy goat and dairy sheep farms. These bacteria reside in the intestines of the animals, and are excreted in manure. A small amount of manure is enough to contaminate raw milk or unpasteurised cheese. Visitors to these farms can also become infected if they come into contact with the animals or their environment. Contamination can be prevented by consuming or processing all milk pasteurized. Visitors can reduce the risk of disease by washing their hands if they have been in contact with the animals or their environment.

STEC and Campylobacter bacteria, in particular, were frequently found. STEC was detected at virtually all the farms that were investigated. Campylobacter was detected at 33 percent of the goat farms and 95.8 percent of the sheep farms. These bacteria were found much less often among the farmers and their family members. Listeria was detected less often: at 8.8 percent of the goat farms and 16.7 percent of the sheep farms, and not among people. However, it is a relevant pathogen since unpasteurised soft cheese is the most important source of Listeria infection in humans.

Salmonella was not found at dairy goat farms but was found at 12.5 percent of the dairy sheep farms. On most farms, only a type of Salmonella that is not transmitted to humans was found. ESBL-producing bacteria, which are insensitive to many antibiotics, were detected at 1.7 percent of the goat farms and 4.2 percent of the sheep farms. They were also found in 6.8 percent of the people. This percentage is not higher than for the general population.

RASFF Alert – Foodborne Outbreak Suspected – STEC E.coli O26:H11 – Raw Milk Reblochon

kswfoodworld food safety poisoning

RASFF-foodborne outbreak suspected (STEC O26H11 eae+ stx2+) to be caused by raw milk reblochon from France in France

RASFF Alerts – STEC E.coli – Wheatgrass Powder – Raw Sheep Milk Cheese – Chilled Topside Beef

kswfoodworld food safety poisoning

RASFF-shigatoxin-producing Escherichia coli (stx1+ /25g) in wheatgrass powder from Germany in Germany

RASFF-shigatoxin-producing Escherichia coli (eae- stx1+ /25g) in raw milk sheep cheese from France in Italy

RASFF-shigatoxin-producing Escherichia coli (stx1+; eae+ /25g) in chilled beef topside from the United Kingdom in the Netherlands

Research – Shiga toxin-producing E. coli found in food

Science Daily 

 

Escherichia coli (E. coli) is a germ that occurs naturally in the gut of mammals and birds, as well as in the human intestinal flora. However, certain E. coli types can cause severe diarrhea in humans. These virulent E. coli types include Shiga toxin-producing E. coli (STEC), also known as Verotoxin-producing E. coli (VTEC).

Their damaging effect is due to the fact that STEC produce toxins known as Shiga toxins (Stx), which can cause disease in the human gut. As the best known STEC representative, an enterohaemorrhagic E. coli (EHEC) strain of the serotype O104:H4 was responsible for numerous severe cases of haemolyticuremic syndrome (HUS) and bloody diarrhea in Germany in 2011, as a result of which 53 people died.