Category Archives: Microbiology Investigations

Research – Foodborne Botulism, Canada, 2006–2021

Posted on September 2, 2023 by | Leave a comment

cdc

kswfoodworld

Abstract

During 2006–2021, Canada had 55 laboratory-confirmed outbreaks of foodborne botulism, involving 67 cases. The mean annual incidence was 0.01 case/100,000 population. Foodborne botulism in Indigenous communities accounted for 46% of all cases, which is down from 85% of all cases during 1990–2005. Among all cases, 52% were caused by botulinum neurotoxin type E, but types A (24%), B (16%), F (3%), and AB (1%) also occurred; 3% were caused by undetermined serotypes. Four outbreaks resulted from commercial products, including a 2006 international outbreak caused by carrot juice. Hospital data indicated that 78% of patients were transferred to special care units and 70% required mechanical ventilation; 7 deaths were reported. Botulinum neurotoxin type A was associated with much longer hospital stays and more time spent in special care than types B or E. Foodborne botulism often is misdiagnosed. Increased clinician awareness can improve diagnosis, which can aid epidemiologic investigations and patient treatment.

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Posted in Bacterial Toxin, Clostridium, Clostridium botulinum, Food Micro Blog, Food Microbiology, Food Microbiology Blog, Food Microbiology Research, Food Microbiology Testing, Food Poisoning, Food Poisoning Death, Food Toxin, microbial contamination, Microbial growth, Microbiological Risk Assessment, Microbiology, Microbiology Investigations, Microbiology Risk

Research – The Isolation, Genetic Analysis and Biofilm Characteristics of Listeria spp. from the Marine Environment in China

Posted on September 2, 2023 by | Leave a comment

MDPI

Abstract

Listeria monocytogenes is an important pathogen that can cause listeriosis. Despite the growing recognition of Listeria spp. as a foodborne and environmental pathogen, the understanding of its prevalence and characteristics of Listeria spp. in the marine environment remains unknown. In this study, we first investigated the genetic and phenotypic characteristics of Listeria species isolated in a coastal city in China. The findings revealed that the sequence type 87 (ST87) L. monocytogenes, a prevalent clinical and seafood strain in China, dominates in recreational beach sands and possesses a notable biofilm-forming capacity in seawater. The presence of ST87 L. monocytogenes in coastal environments indicates the potential health risks for both recreational activities and seafood consumption. Moreover, the ST121 isolates from sand had a versatile plasmid encoding multifunctional genes, including uvrX for UV resistance, gbuC for salt resistance, and npx for oxidative resistance and multiple transposases, which potentially aid in survival under natural environments. Black-headed gulls potentially facilitate the spread of L. monocytogenes, with similar ST35 strains found in gulls and beach sand. As a reservoir of microbes from marine environments and human/animal excrement, coastal sand would play an important role in the spread of L. monocytogenes and is an environmental risk for human listeriosis.

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Posted in Biofilm, Decontamination Microbial, Food Micro Blog, Food Microbiology, Food Microbiology Blog, Food Microbiology Research, Food Microbiology Testing, Listeria, Listeria monocytogenes, microbial contamination, Microbial growth, Microbiological Risk Assessment, Microbiology, Microbiology Investigations, Microbiology Risk

Wales – Wrexham pub linked to Salmonella outbreak that affected 33 people

Posted on September 1, 2023 by | Leave a comment

ITV

A pub in Wrexham has been linked to a huge salmonella outbreak that affected 33 people.Public Health Wales said 33 confirmed cases and one of the probable cases were associated with The Nags Head pub on Mount Street.

Controls were put in place at the Marston’s owned pub following the outbreak at the end of July, to stop any further infections. This included a deep clean of the premises and testing of staff.

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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, Microbial growth, Microbiological Risk Assessment, Microbiology, Microbiology Investigations, Microbiology Risk, outbreak, Salmonella

EU – Contaminated chicken suspected for Salmonella cases in 11 countries – Polish Chicken Suspected

Posted on September 1, 2023 by | Leave a comment

Food Safety News

More than 130 people have fallen sick in 11 countries with contaminated chicken meat from Poland suspected as being the source of infection.

An analysis by the European Centre for Disease Prevention and Control (ECDC) focused on two sub-clusters of Salmonella Enteritidis sequence type (ST) 11 with 134 cases mostly reported between January and August 2023. This Salmonella Enteritidis sequence type is the most frequently detected in Europe.

In one cluster, 97 cases with recent or historical isolates, that were closely related genetically, were reported with 22 cases in Denmark, 19 in France and 12 each in Ireland and the Netherlands. Norway has nine patients, Austria and Belgium both have six, Finland has five, Slovenia has three, Sweden has two, and Germany has one.

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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, Foodborne Illness, foodborne outbreak, foodbourne outbreak, Illness, microbial contamination, Microbial growth, Microbiological Risk Assessment, Microbiology, Microbiology Investigations, Microbiology Risk, outbreak, Polish Chicken Salmonella, Salmonella, Salmonella in Chicken, Salmonella Poland

RASFF Alerts – Animal Feed – Salmonella – Rapeseed Meal -Soy Bean Meal

Posted on September 1, 2023 by | Leave a comment

RASFF

Salmonella in rapeseed meal from Poland in Sweden

RASFF

Salmonella spp. in soy(bean) meal feed from Germany in Denmark

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Posted in Animal Feed Salmonella, Animal Feed Testing, Food Micro Blog, Food Microbiology Blog, microbial contamination, Microbial growth, Microbiological Risk Assessment, Microbiology, Microbiology Investigations, Microbiology Risk, RASFF

RASFF Alert- Animal Feed – Aflatoxin – White Sunflower Seeds

Posted on September 1, 2023 by | Leave a comment

RASFF

Aflatoxin B1 in white sunflowers seeds from Egypt, via the Netherlands in France and Belgium

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Posted in Aflatoxin, Animal Feed, Animal Feed Aflatoxin, Animal Feed Mould Toxin, Animal Feed Mould/Mold, Animal Feed Testing, Aspergillus, Aspergillus Toxin, Food Micro Blog, Food Microbiology Blog, microbial contamination, Microbial growth, Microbiological Risk Assessment, Microbiology, Microbiology Investigations, Microbiology Risk, RASFF

USA – Five people hospitalized in E. coli O157 outbreak at the University of Arkansas

Posted on August 31, 2023 by | Leave a comment

The Washington Post

Health officials are investigating an outbreak of E. coli food poisoning among students at the University of Arkansas, with dozens reporting symptoms and five people needing treatment in the hospital.

Among those affected are two 19-year-old sorority members who developed a serious complication that can lead to kidney failure after being infected with the E. coli strain O157:H7. That’s according to Bill Marler, a Seattle food safety lawyer who said he reviewed the patients’ medical records after being contacted by the families.

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Posted in Bacterial Toxin, E.coli O157, E.coli O157:H7, food bourne outbreak, Food Illness, Food Micro Blog, Food Microbiology, Food Microbiology Blog, Food Microbiology Research, Food Microbiology Testing, Food Toxin, Foodborne Illness, foodborne outbreak, foodbourne outbreak, Illness, microbial contamination, Microbial growth, Microbiological Risk Assessment, Microbiology, Microbiology Investigations, Microbiology Risk, outbreak, STEC, STEC E.coli, Toxin

USA – Vibrio and Food

Posted on August 30, 2023 by | Leave a comment

CDC

You can get a Vibrio infection by eating raw or undercooked seafood, particularly oysters. You also can get an infection if you have an open wound that comes in contact with raw or undercooked seafood, their juices, or their drippings.

If you enjoy eating seafood, fishing in coastal waters, or crabbing off the pier, learn more about how you can protect yourself and family from a Vibrio infection.

What foods are commonly linked to Vibrio?

Vibrio bacteria naturally live in coastal waters and can concentrate inside shellfish and other seafood that live in these waters.

  • Oysters: Oysters feed by filtering water. As oysters feed, Vibrio, norovirus, and other germs can concentrate in them. When you eat raw or undercooked oysters, germs that may be in them can make you sick. Get the facts about Vibrio and oysters >
  • Other shellfish: Oysters aren’t the only shellfish that can carry Vibrio and other germs. Vibrio illnesses have also been linked to crawfish, crab meat, and other shellfish including clams, mussels, and scallops. Stay safe by following CDC’s tips for cooking shellfish and preventing wound infections.
  • Fish: Although Vibrio infections from fish aren’t as common as infections from shellfish, they do happen from time to time. Other harmful germs can be found in fish, too. To help prevent infection, cook fish to 145°F or until its flesh is opaque.

How many people get a Vibrio illness (vibriosis) from food each year?

CDC estimates that vibriosis causes 80,000 illnesses each year in the United States. An estimated 52,000 of those illnesses are caused by eating food containing Vibrio. Most people with a foodborne Vibrio infection have watery diarrhea. Some people may also have stomach cramping, nausea, vomiting, fever, and chills. Symptoms usually start within 1 day after infection and last about 3 days.

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Posted in Decontamination Microbial, Food Micro Blog, Food Microbiology, Food Microbiology Blog, Food Microbiology Research, Food Microbiology Testing, microbial contamination, Microbial growth, Microbiological Risk Assessment, Microbiology, Microbiology Investigations, Microbiology Risk, Vibrio, Vibrio cholera, vibrio cholerae, Vibrio parahaemolyticus, Vibrio vulnificans, Vibrio vulnificus

UK – Mogul Restaurant in Bagshot prosecuted for food safety failures.

Posted on August 30, 2023 by | Leave a comment

Surrey Heath

Surrey Heath Borough Council has successfully prosecuted the previous operator of Mogul Restaurant for failing to comply with food safety regulations following a significant food poisoning outbreak amongst customers at the end of 2022.

The company has been ordered to pay a fine of £25,000, a victim surcharge of £2,000 and the Council’s costs of £14,116.

This prosecution is in addition to the restaurant being temporarily shut under Emergency Prohibition provisions to protect further risk of ill health to the public at the time of the outbreak whilst the necessary improvements were made.

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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, Foodborne Illness, foodborne outbreak, foodbourne outbreak, Illness, microbial contamination, Microbial growth, Microbiological Risk Assessment, Microbiology, Microbiology Investigations, Microbiology Risk, outbreak

Denmark – Polish chicken kebab is linked to Danish salmonella outbreak

Posted on August 30, 2023 by | Leave a comment

SSI

Since May, 22 people have been registered in Denmark with the same salmonella type, which has also made people sick in other European countries. Now the investigation has shown that imported chicken kebab meat from Poland is also the source of infection for the Danish cases.

Last edited on August 29, 2023
Last week, the Danish Veterinary and Food Administration found salmonella in a batch of frozen chicken kebab meat from Poland, and the batch was withdrawn from the market. Further analyzes have shown that it is the same type of salmonella that made 22 people sick in Denmark in the period May to August 2023. It is estimated that more people may have been infected, as not all infected people go to the doctor and are tested for salmonella. The frozen chicken kebab products have mainly been sold to restaurants.

“The investigation into this salmonella outbreak has been extensive – partly there has been international collaboration to compare salmonella samples from humans and food, and partly we in the Danish food emergency department have interviewed patients and unraveled where the chicken kebab meat they had eaten came from. We have now found a clear connection between the salmonella type in the chicken kebab meat and the salmonella type in the Danish cases,” says epidemiologist at the Statens Serum Institut, Luise Müller.

“In general, it is the restaurant’s responsibility that consumers do not get sick from the food that is served. The Salmonella bacteria cannot survive heat treatment above 75 degrees,” says Senior researcher and research group leader at the DTU Food Institute Marianne Sandberg.

Head of unit Lene Mølsted Jensen from the Danish Food and Drug Administration states: “The chicken kebab meat from Poland was pre-fried and intended to be further heat-treated before eating. It is therefore an important lesson for restaurants and kebab places that in the future they pay attention to the handling and frying of chicken kebab meat to avoid this happening again.”

In the coming time, the Danish Food and Food Administration will keep an extra eye on whether other batches of chicken products from Poland may be contaminated with salmonella.

What should you do if you have eaten chicken kebab?

If you have not had symptoms of a salmonella infection, or if you have had symptoms that have resolved on their own, do not take any action. In case of persistent symptoms or questions, you can contact your own doctor.

The coordination of the investigation of the disease outbreak has taken place under the auspices of the Central Outbreak Group. It consists of representatives from SSI, the DTU Food Institute and the Danish Veterinary and Food Administration.

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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, Microbial growth, Microbiological Risk Assessment, Microbiology, Microbiology Investigations, Microbiology Risk, outbreak, Polish Chicken Salmonella, Salmonella, Salmonella in Chicken, Salmonella Poland