Category Archives: Food Micro Blog

Research – Raw food: health risks are often underestimated

BFR

A glass of raw milk for breakfast, a roll with raw ham in the lunch break and a homemade smoothie with frozen berries in the afternoon – raw or unheated food is a regular part of the population’s menu. This is shown by a current, representative survey by the Federal Institute for Risk Assessment ( BfR ). Raw animal and vegetable products should be consumed with caution. They can contain pathogenic germs such as salmonella, listeria and campylobacter and lead to foodborne infections. Small children, people with previous illnesses, the elderly and pregnant women are particularly at risk. “The health risks of raw foods are often underestimated,” says BfR-President Professor Dr. dr Andrew Hensel. “Heating protects. Diseases can be avoided with simple kitchen hygiene rules. Sensitive groups of people in particular should only eat raw animal food that has been sufficiently heated.”

To the BfR Consumer Monitor Special information brochure, raw foods:

The particularly popular raw foods include raw sausage and raw ham, which are eaten several times a week by more than a third of those surveyed. At least one to three times a month, 73 percent of those surveyed eat raw meat and sausage products, followed by soft cheese made from raw milk (57 percent). Other foods eaten with the same frequency by around a third of those surveyed are raw meat (38 percent), cold-smoked fish (33 percent) and frozen berries (33 percent). While about one in five (21 percent) eats raw sweet dough with eggs at least once or three times a month, it is still one in eight (12 percent) when it comes to raw dough without eggs. 19 percent of respondents drink raw milk at least one to three times a month.

Every year around 100,000 diseases are reported in Germany that may have been caused by bacteria, viruses or parasites in food. The number of unreported cases is likely to be much higher. While salmonella, listeria and norovirus are known to the majority of the population, the knowledge about other food-related pathogens is less good. Particularly surprising: Although campylobacteriosis has been the most frequently reported bacterial food-borne illness in Germany and Europe for years, only just under a quarter (23 percent) of people know the causative pathogen Campylobacter . The same applies to the abbreviations STEC, EHEC and VTEC for particularly dangerous Escherichia coli-Bacteria (27 percent). The pathogens mentioned can lurk in a large number of raw foods: salmonella and campylobacter in poultry, chicken eggs and raw meat and sausage products, listeria in cold-smoked fish products and raw milk cheese or noroviruses in raw oysters and frozen berries as well as STEC in flour.

The perception of the health risk sometimes differs greatly between different raw or unheated foods. The majority of respondents see a medium to (very) high health risk in particular with raw fish and raw seafood, raw meat, raw eggs and raw sweet dough with eggs. Frozen berries, on the other hand, are perceived as the least risky. Other foods that the majority of those surveyed also associate with a (very) low health risk are soft cheese made from raw milk, cold-smoked fish, raw sausage and raw ham, as well as raw dough without eggs.

In order to protect yourself from foodborne infections, it is important to observe the rules of kitchen hygiene so that pathogens do not spread from raw foods to others. Small children, pregnant women and people with a weakened immune system should only eat raw food from animals if they have been sufficiently heated beforehand.

Via the BfR consumer monitor

Whether antibiotic resistance, microplastics, salmonella or aluminum in food – which health risks are known to the population and what worries them? The BfR Consumer Monitor, a representative population survey that has been carried out regularly since 2014, provides answers to these and other questions . To this end, around 1,000 people living in private households in Germany are being interviewed by telephone on behalf of the BfR . In addition, the BfR conducts representative surveys on individual topics that are of particular current interest, such as tattoos, e-cigarettes, superfoods or additives in food.

Research – Large Multicountry Outbreak of Invasive Listeriosis by a Listeria monocytogenes ST394 Clone Linked to Smoked Rainbow Trout, 2020 to 2021

ASM

Whole-genome sequencing (WGS) has revolutionized surveillance of infectious diseases. Disease outbreaks can now be detected with high precision, and correct attribution of infection sources has been improved. Listeriosis, caused by the bacterium Listeria monocytogenes, is a foodborne disease with a high case fatality rate and a large proportion of outbreak-related cases. Timely recognition of listeriosis outbreaks and precise allocation of food sources are important to prevent further infections and to promote public health. We report the WGS-based identification of a large multinational listeriosis outbreak with 55 cases that affected Germany, Austria, Denmark, and Switzerland during 2020 and 2021. Clinical isolates formed a highly clonal cluster (called Ny9) based on core genome multilocus sequence typing (cgMLST). Routine and ad hoc investigations of food samples identified L. monocytogenes isolates from smoked rainbow trout filets from a Danish producer grouping with the Ny9 cluster. Patient interviews confirmed consumption of rainbow trout as the most likely infection source. The Ny9 cluster was caused by a MLST sequence type (ST) ST394 clone belonging to molecular serogroup IIa, forming a distinct clade within molecular serogroup IIa strains. Analysis of the Ny9 genome revealed clpY, dgcB, and recQ inactivating mutations, but phenotypic characterization of several virulence-associated traits of a representative Ny9 isolate showed that the outbreak strain had the same pathogenic potential as other serogroup IIa strains. Our report demonstrates that international food trade can cause multicountry outbreaks that necessitate cross-border outbreak collaboration. It also corroborates the relevance of ready-to-eat smoked fish products as causes for listeriosis.
IMPORTANCE Listeriosis is a severe infectious disease in humans and characterized by an exceptionally high case fatality rate. The disease is transmitted through consumption of food contaminated by the bacterium Listeria monocytogenes. Outbreaks of listeriosis often occur but can be recognized and stopped through implementation of whole-genome sequencing-based pathogen surveillance systems. We here describe the detection and management of a large listeriosis outbreak in Germany and three neighboring countries. This outbreak was caused by rainbow trout filet, which was contaminated by a L. monocytogenes clone belonging to sequence type ST394. This work further expands our knowledge on the genetic diversity and transmission routes of an important foodborne pathogen.

Research Imported spring onions related to the first recorded outbreak of enteroinvasive Escherichia coli in Denmark, November to December 2021

Eurosurveillance

Enteroinvasive  (EIEC) is a Gram-negative bacteria causing diarrhoeal disease. EIEC is transmitted via the faecal–oral route, with a usual incubation period of 1–3 days; infections are frequently related to contaminated food and water [1,2]. In Denmark, disease caused by EIEC is mostly observed in returning travellers, but secondary transmission from person-to-person may occur [3]. In Europe, outbreaks of EIEC in 2012, 2014 and 2017 have been reported and, for all of these, contaminated vegetables were suspected as the source [4–6].

Clinically, EIEC infections present either with watery diarrhoea or dysentery. EIEC invade the epithelial cells of the large intestine in the same manner as  and symptoms resulting from EIEC infection are clinically indistinguishable from shigellosis [7]. Studies have shown that  and  species have high genomic and phenotypic similarity, leading to propose that  species should be reclassified as a subspecies of  [8,9].

Diagnostics of EIEC in Denmark are done locally through 10 different clinical microbiology laboratories situated at hospitals in the five Danish regions. The criteria for carrying out an EIEC diagnostic vary. Some laboratories test all faecal samples for diarrhoeagenic  including EIEC, while others test only faecal samples from suspected patients, based on their age, travel history and presence of bloody diarrhoea. The PCR diagnostic assays target the invasive plasmid gene () shared by both  spp. and EIEC [10]. Culture is required to differentiate the two species, and if culture is not possible or unsuccessful, faecal specimens are considered positive for the combination /EIEC. Detection of /EIEC is voluntarily notified as part of the Danish laboratory surveillance, where episodes are irregularly reported by the clinical microbiology laboratories to Statens Serum Institut (SSI), the national public health institute. All isolates from successfully cultured samples are furthermore routinely sent on a voluntary basis to SSI for further characterisation.

Outbreak detectionOn 10 December 2021, the clinical microbiology laboratory at Slagelse hospital in Region Zealand reported observing an increase between 5 and 8 December of patients diagnosed with domestically-acquired EIEC. During this period, this laboratory had detected a total of five such patients. On the same day (10 December), SSI identified one EIEC isolate with serotype O96:H- and three with serotype O136:H7 (two of which originated from Slagelse hospital), the latter a type never found in human samples from Denmark before. In total, between 6 and 10 December, SSI had received six EIEC isolates from three different regions of Denmark, exceeding the total number of EIEC isolates that were received in the months of December of the 2 previous years. A national outbreak was therefore declared on 13 December.

Research – BSI – What is PAS 320 Developing and sustaining a mature food safety culture – Guide about?

BSI

When it comes to food safety, the common factor in many incidents and recalls is people. In response PAS 320:2023 gives organizations clear guidance on what a good food safety culture looks like.

Who is PAS 320 Developing and sustaining a mature food safety culture – Guide for?

Any organization of any size or purpose across the food chain, from primary production to final delivery to consumers. PAS 320:2023 might also be of use to:

  • Educational institutions
  • Trade associations
  • Coalitions of action
  • Professional bodies
  • Certification and accreditation bodies
  • Certification programme owners (CPOs) and regulatory bodies

What does PAS 320 Developing and sustaining a mature food safety culture – Guide cover?

PAS 320:2023 gives guidance on recognizing and maintaining a positive culture of food safety in any food organization, regardless of its size or focus.

It includes guidance on using a food safety culture maturity model against which organizations can assess their level of maturity to help foster cultural change that impacts on all functions and levels in a food organization. It covers the defined pre-requisites and taxonomy of organizational culture, with a food safety culture focus. Why should you use PAS 320 Developing and sustaining a mature food safety culture – Guide?

  • It provides practical guidance on recognizing and maintaining a positive safety culture in any food organization
  • It will drive best practices throughout the industry that can proactively mitigate food safety risks by embedding a safety culture in food organizations, top down and bottom up

It can help increase confidence in food organizations and strengthen their risk management.

PAS 320:2023 contributes to UN Sustainable Development Goal 2 on ending hunger, and achieving food security and sustainable agriculture, and Goal 3 on good health and well-being.

Ireland – Recall of a batch of Guastalla Green and Black Pitted Olives due to the presence of Listeria monocytogenes

FSAI

Thursday, 13 April 2023

Summary
Category 1: For Action
Alert Notification: 2023.08
Product: Guastalla Green and Black Pitted Olives; pack size: 100g; approval number: IE 4071 EC
Batch Code: Use by date: 25.04.2023
Country Of Origin: Ireland

Message:

Italicatessen is recalling the above batch of Guastalla Green and Black Pitted Olives due to the presence of Listeria monocytogenes.

Recall notices will be displayed at point-of-sale.

Nature Of Danger:

Symptoms of Listeria monocytogenes infection can include mild flu-like symptoms, or gastrointestinal symptoms such as nausea, vomiting and diarrhoea. In rare cases, the infection can be more severe, causing serious complications. Some people are more vulnerable to Listeria monocytogenes infections, including pregnant women, babies, and people with weakened immune systems, including the elderly. The incubation period (time between initial infection and first symptoms appearing) is on average 3 weeks but can range between 3 and 70 days.

Action Required:

Manufacturers, wholesalers, distributors, caterers & retailers:

Retailers are requested to remove the implicated batch from sale and display recall notices at point- of-sale.

Consumers:

Consumers are advised not to eat the implicated batch.

Guastalla Green and Black Pitted Olives

RASFF Alerts – Aflatoxin – Pistachios and Hazelnuts

RASFF

Aflatoxin in Pistachio from Turkey in Italy

RASFF

Aflatoxins in hazelnuts from Georgia in Germany and Bulgaria

RASFF Alert- Norovirus – French Oysters

RASFF

Norovirus in oysters from France in Belgium

RASFF Alert -STEC E.coli – Minced Meat

RASFF

STEC (stx+;eae+) in minced meat from Belgium in France and the Netherlands

RASFF Alert – Listeria monocytogenes – Cheese – Chorizo – Dairy Products

RASFF

Detection of Listeria monocytogenes on cheese from France in Belgium and Luxembourg

RASFF

Detection of listeria monocytogenes in chorizo from Spain in France

RASFF

Presence of listeria monocytogenes in dairy products from Italy in Malta, Slovenia, France

RASFF Alerts – Salmonella – Sesame Seeds – Polish Chicken – Chicken Sausages – Chicken Breast – Turkey Meat –

RASFF

Salmonella Enteritidis in cream cake from Slovenia in Austria

RASFF

Salmonella in chicken sausages from Belgium in the Netherlands

RASFF

Detection of Salmonella enteritidis on chicken legs from Poland in France

RASFF

Salmonella in frozen roasted chicken breast from Ukraine in France, Germany and Netherlands

RASFF

Salmonella Typhimurium in turkey meat from Poland  in  Belgium, Czech Republic, Denmark, Germany, Hungary, Romania, Slovakia, Sweden.

RASFF

Salmonella spp in sesame seeds from Nigeria in Greece and Switzerland

RASFF

Salmonella spp in sesame seeds from Nigeria in Greece and Switzerland

RASFF

Salmonella spp in sesame seeds from Nigeria in Greece and Switzerland

RASFF

Salmonella spp in sesame seeds from Nigeria in Greece

RASFF

Salmonella spp. in sesame seeds from Nigeria in Greece