Category Archives: Food Microbiology Research

USA – New Course from ChildCare Education Institute on Preventing Foodborne Illnesses

Global News Wire

ATLANTA, GA, March 25, 2021 (GLOBE NEWSWIRE) — ChildCare Education Institute® (CCEI), an online child care training provider dedicated exclusively to the early care and education workforce, is proud to introduce NFS102: Preventing Foodborne Illnesses to the online child care training course catalog.

Foodservice managers and others tasked with preparing meals for children enjoy creating delicious and nutritious options for the children in their care. Those who prepare food in the early childhood environment are eager to prepare tasty, nutritious meals because they know how important good nutrition is for young bodies and minds.

Foodborne illnesses are infectious or toxic diseases caused by bacteria or other agents that enter the body through contaminated food.  Every person is at risk of contracting a foodborne illness. Foodborne illnesses are prevented by combining good hygiene and sanitation, safe storage, and proper preparation and handling.

RASFF Alerts – Listeria monocytogenes – Frozen Boar Products – Raw Cows Milk Cheese

European Food Alerts

RASFF

Listeria monocytogenes (up to 400 CFU/g) in frozen boar products from Poland in Germany

RASFF

Listeria monocytogenes (presence /25g) in raw cow’s milk cheese from France in Germany

UK – Home Cooking and Selling Risks

LEX

With the country in lockdown and having more spare time than ever before, there has been a concerning rise in food businesses operating out of people’s homes and selling on social media. Many of these businesses have been set up by people who have lost their jobs or are on furlough, including professional chefs hit by the closure of restaurants. Instead of opening the next market stall or restaurant, they are using the power of Instagram and Facebook to try and succeed in the crowded market.

However, the food safety watchdog has issued an alert that Britons could be putting their health at serious risk as many of these ‘home-cookers’ are not registering as official food businesses, meaning that their food hygiene arrangements are not checked. They are operating under the radar and often you won’t find any trace of them outside of Instagram, not even a website. They simply post a picture of something freshly prepared and the rest of the conversations happens on a ‘DM’ to decide on the price and the location from where the order is to be picked up.

BBC

There has been a “concerning” rise in food businesses operating out of people’s homes during lockdown, according to the food safety watchdog.

Many of them are selling food through social media, putting further pressure on a hygiene inspection system that is under strain because of the crisis.

And other experts are also worried.

“Little food businesses are popping up like mushrooms in lockdown,” said Julie Barratt from the Chartered Institute of Environmental Health (CIEH).

“There are rank outsiders operating off the radar, who think, ‘Oh, my mum can cook’, and confuse cooking with catering,” she added. They sell to locals on apps such as Whatsapp, Instagram and Nextdoor.

Many are failing to register as food businesses, meaning their hygiene arrangements are not checked by local authorities.

But even those that do register are often not getting an inspection – despite new businesses usually being a priority – because the system is struggling to keep up during the pandemic.

Hygiene inspections ceased completely during the first lockdown and since then a scaled-back operation has focused on high-risk cases.

New Zealand – New Zealand Food Safety warns consumers not to eat raw mussels

MPI

New Zealand Food Safety is advising people to stay safe from food poisoning by cooking mussels thoroughly before eating them.

Dr Paul Dansted, director of food regulation at New Zealand Food Safety, says Vibrio parahaemolyticus are naturally occurring bacteria that are found in seawater and occur when warmer temperatures during summer are favourable for growth.

“We expect to see an increase in incidence of Vibrio parahaemolyticus in the warmer months. However, statistics from the Institute of Environmental Science and Research (ESR) show a recent spike in cases, with 22 since the beginning of the year. This compares with 14 for the first 3 months of 2020, and 4 for the same period in 2019.

“Symptoms of Vibrio parahaemolyticus may include watery or bloody diarrhoea, abdominal cramps, nausea, vomiting, fever, and/or headache. The consequences can be more serious for people with weakened immunity, the young, the elderly and frail, and pregnant women.

“As undercooked mussels can be a risk factor, it’s important to take care with their preparation. To be safe to eat, thoroughly cook mussels at above 65oC for one minute. This will ensure that any Vibrio parahaemolyticus present in the mussels will be destroyed.

“One good way to know when mussels are fully cooked is that their shells pop open when boiled or steamed, and the mussel inside is firm to the touch.

“If you get sick, phone Healthline for advice on 0800 61 11 16 or seek medical attention immediately. If possible, store and refrigerate any leftover food for testing.”

Take care when handling, preparing and consuming mussels. Follow this simple food safety guidance to avoid getting Vibrio parahaemolyticus: Clean, Cook, Chill.

“It is raw mussels that we are advising against consuming. They are not the mussels that can be bought in plastic pottles. Those mussels are cooked and marinated and are not affected,” Dr Dansted says.

Find out more

USA – Rare Norovirus GIV Foodborne Outbreak, Wisconsin, USA

CDC

Food Borne Illness - Norovirus -CDC Photo

We report a norovirus GIV outbreak in the United States, 15 years after the last reported outbreak. During May 2016 in Wisconsin, 53 persons, including 4 food handlers, reported being ill. The outbreak was linked to individually prepared fruit consumed as a fruit salad. The virus was phylogenetically classified as a novel GIV genotype.

Norovirus is the leading cause of epidemic and endemic acute gastroenteritis globally. The virus can be transmitted through person-to-person contact, consumption of fecally contaminated food or water, or self-contamination after touching contaminated environmental surfaces (1,2). Noroviruses are divided into at least 10 genogroups (G), and viruses in GI, GII, GIV, GVIII, and GIX cause illness in humans (3). More than 99% of all norovirus outbreaks are caused by GI and GII viruses in the United States (4). GVIII includes 2 strains that have been detected in Japan during 2004 and 2011 (3), and GIX has caused 11 reported outbreaks in the United States since 2013 (https://www.cdc.gov/norovirus/reporting/calicinet/data.html).

GIV is divided into 2 recognized genotypes: GIV.1, which infects humans (5), and GIV.2, which infects canines and felines (6). GIV viruses were reported in humans in the Netherlands during 1998 and the United States during 1999 (7,8) and have since been sporadically reported in clinical and environmental samples (5,911). An outbreak linked to a GIV norovirus in the United States has not been reported since 2001 (4,8). In this article, we describe a 2016 foodborne norovirus outbreak associated with a novel GIV strain (tentatively GIV.NA).

EU – Stable Campylobacter and Salmonella cases in the EU

Oulah

The number of reported cases of illnesses caused by Campylobacter  and  Salmonella bacteria   in humans in Europe appear to level off over the past five years, according to the  latest zoonoses report released by the European Food Safety Authority (EFSA) and the European Center for Disease Prevention and Control (ECDC).

Campylobacteriosis, the most frequently reported gastrointestinal disease in the EU since 2005, affected more than 220,000 people in 2019. Salmonellosis was the second most frequently reported zoonosis in the EU, with around 88,000 people affected.

Of the 66,113 ready-to-eat food samples – foods that did not require cooking before consumption – 0.3% tested positive for  Salmonella . Of the 191,181 non-ready-to-eat food samples, 1.5% tested positive. 18 of the 26 Member States reporting on programs to control  Salmonella  in poultry populations met all their reduction targets, up from 14 in 2018.

The next most frequently reported diseases are   shiga-toxin-producing Escherichia coli (STEC), yersiniosis and listeriosis. The trend in confirmed human cases of listeriosis remained stable between 2015 and 2019, after a long period of increase. 2,621 cases were reported in 2019, mostly affecting individuals over the age of 64. It is the most serious disease, with high rates of hospitalization (92%) and mortality (17.6%).

The report also looks at the cause of outbreaks of foodborne illness in the EU, i.e. outbreaks in which two or more people contract the same disease after consuming the same contaminated food. Salmonella  remains the most frequently detected agent and causes 926 outbreaks; the number of outbreaks due to  S . Enteritidis  , on the other hand, has declined. The most common sources of outbreaks of salmonellosis were eggs and egg products. Noroviruses in fish and fishery products cause the greatest number of outbreaks (145) with “strong evidence” involving a food source.

A total of 5,175 outbreaks of foodborne illness were reported in 2019, a decrease of 12.3% from 2018.

The report also contains data on  Mycobacterium bovis / caprae ,  Brucella ,  Yersinia ,  Trichinella ,  Echinococcus ,  Toxoplasma  gondii , rabies, Q fever, West Nile virus and tularemia.


▸ Source
https://www.efsa.europa.eu/

UK – The FSA reveals that 50% of adults do not always check the use-by date on their food putting themselves and family at risk

FSA

The Food Standards Agency (FSA) new snapshot poll of 2,132 adults aged 16-75 in England, Wales, and Northern Ireland reveals half of adults do not always check the use-by date on their food before eating it.

Findings show that 44% view use-by dates as a ‘useful guide’ – not realising the potential health risks of getting food poisoning, which could make them or their family seriously ill.

According to the poll, 50% of adults in England, Wales and Northern Ireland, cannot identify the correct definition for a use-by date: that is, that food can be eaten until the use-by date, but not safely after. This is in contrast to the best before date, which is about quality, and food eaten past this date might not taste as good.

The research also showed that 76% of these adults have knowingly eaten food past the use-by date, with 37% admitting to cooking food for other people that is past its use-by date – which rises to 43% people aged 25-34 years old.

The poll revealed 77% of people decide whether food is safe to eat by smelling it, which rises to 80% of women compared to 73% of men.

Professor Robin May, Chief Scientific Advisor at the FSA said:

“These findings are worrying. They indicate that people are often confused about food dates, potentially putting themselves and others at risk of illness. A use-by date on food is there for a reason. It is about safety. After the use-by date you cannot cook, freeze or eat the food safely, even if it smells or looks ok. It’s really not possible to tell whether food is safe to eat by smelling or tasting it. We would like everyone to take the use-by dates on their food seriously.”

Dr Dawn Harper, spokesperson for the campaign commented:

“It’s so important to understand that best before and use-by dates are not the same. If you eat food past the use-by date it could make you or your family seriously ill. I’ve treated a number of patients for food poisoning over the years, and it can be particularly nasty to those more vulnerable to infection such as young children and elderly people. Make sure you’re looking after yourself and always checking the use-by date to keep you and your family safe and healthy.”

According to the poll, of those adults who sometimes eat food past the use-by date, 43% do so believing that if food is just past the use-by date, it’s safe to eat. Over half (51%) continue to eat food past the use-by date because they’ve done it before and felt fine and 59% say they eat food past the use-by date because they don’t want it to go to waste.

Professor Robin May continues:

“It’s great that people are trying to minimise food waste, but there are lots of ways to do that without gambling with your health, such as planning your meals ahead of time, checking what you have in the fridge that’s close to its use-by date and freezing food right up until the use-by date.”

Findings also show that 39% of 16-24 year olds reported they were more likely to pay attention to the use-by date during the lockdown in February 2021, compared to before the pandemic (March 2020). 55-75s are the group least likely to change their behaviour when it comes to checking use-by dates, with 90% reporting no change in behaviour.

You can find more advice on use-by dates on our Best before and use-by dates page.

About this poll

The Research poll completed by Ipsos Mori based on 2,132 respondents across all adults aged 16-75 in England, Wales and Northern Ireland. Ipsos MORI interviewed a representative sample of 2,132 adults in England, Wales and Northern Ireland aged 16-75 online between 5 and 8 March 2021. Data are weighted to the profile of the population. All polls are subject to a wide range of potential sources of error.

Last week we published the Food in a Pandemic report which explored people’s experiences of food during COVID-19, and the findings from our Food and You 2 survey which provides  more detailed information on the public’s self-reported knowledge, attitudes, and behaviour regarding food safety, including use-by dates.

Research – Exploring Listeria monocytogenes perceptions in small and medium sized food manufacturers: technical leaders’ perceptions of risk, control and responsibility

Science Direct

Due to its ability to colonise, grow and form in niches in food manufacturing environments, the management of Listeria monocytogenes can be complex, particularly for food manufacturing small and medium sized enterprises (SMEs). In addition to an effective food safety management system, the perceptions of risk, control and responsibility within a food manufacturing business are important influential factors associated with the management of L. monocytogenes. Research exploring managerial perspectives of L. monocytogenes in food manufacturer SMEs is lacking. Consequently, this study conducted in-depth interviews (n=10) with technical leaders from food manufacturing SMEs to ascertain factors that may influence listeria management, such as factors associated with cultural dimensions. Perceived risks associated with L. monocytogenes were related to business reputation and consumer health impacts, but such events were perceived to be unlikely. Technical leaders reported having clearly defined and well executed processes to ensure food safety; but for some, L. monocytogenes, as a single pathogen was seldom considered. Despite acknowledging that “everyone” had responsibility for ensuring control of the pathogen, technical leaders indicated that the ‘people’ attributes associated with organisational culture were difficult factors to control and manage. Trust in staff ability to assure food safety was widely discussed, with technical leaders acknowledging that food handlers may not necessarily have specific knowledge regarding L. monocytogenes. Some technical leaders perceived themselves as having the greatest levels of responsibility for L. monocytogenes. Overall, technical leaders perceived a medium level of risk, with high levels of control and high levels of responsibility for L. monocytogenes. Optimistic bias, illusion of invulnerability, illusion of control, and perceived attribution of responsibility are discussed, which may hinder implementation of effective listeria management in SME food manufacturing businesses. Consideration of specific pathogen risks in food manufacture in relation to food safety cultural dimensions may assist development of highly targeted and effective interventions.

USA – Raw Milk Debate Returns To The Legislature

MTPR

HELENA — A bill gaining momentum at the Legislature would allow Montanans to sell food from their homes directly to consumers without any government oversight. It would also legalize the direct sale of raw milk.

Senate Bill 199, or the Montana Local Food Choice Act, includes a section that would make it possible for owners of small dairy herds to sell unpasteurized milk, a proposal that drew its own set of opponents with concerns about the risk of foodborne illness.

Research – UK – 2018 Shigella Outbreak – Coriander

Cambridge Org

In April 2018, Public Health England was notified of cases of Shigella sonnei who had eaten food from three different catering outlets in England. The outbreaks were initially investigated as separate events, but whole-genome sequencing (WGS) showed they were caused by the same strain. The investigation included analyses of epidemiological data, the food chain and microbiological examination of food samples. WGS was used to determine the phylogenetic relatedness and antimicrobial resistance profile of the outbreak strain. Ultimately, 33 cases were linked to this outbreak; the majority had eaten food from seven outlets specialising in Indian or Middle Eastern cuisine. Five outlets were linked to two or more cases, all of which used fresh coriander although a shared supplier was not identified. An investigation at one of the venues recorded that 86% of cases reported eating dishes with coriander as an ingredient or garnish. Four cases were admitted to hospital and one had evidence of treatment failure with ciprofloxacin. Phylogenetic analysis showed that the outbreak strain was part of a wider multidrug-resistant clade associated with travel to Pakistan. Poor hygiene practices during cultivation, distribution or preparation of fresh produce are likely contributing factors.