Current Listeria News and Events

Current Listeria News and Events, Listeria News Articles.
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American Frozen Food Institute's international expert panel publishes new manuscript
The American Frozen Food Institute (AFFI) announces the publication of a new manuscript, ''Alternative Approaches to the Risk Management of Listeria monocytogenes in Low Risk Foods,'' now available online in Food Control, an international scientific journal for food safety and process control professionals. (2020-10-16)

Invisible threat: Listeria in smoked fish
Fish should be a regular component of our diets. It is an important source of biologically high-quality and easily digestible protein, minerals and vitamins. However, raw, smoked and cured fish products also often contain pathogenic germs, notably listeria. People can become infected by eating contaminated food and become ill with listeriosis. (2020-10-07)

A new method may make tomatoes safer to eat
When vegetable farmers harvest crops, they often rely on postharvest washing to reduce any foodborne pathogens, but a new University of Georgia study shows promise in reducing these pathogens - as well as lowering labor costs-- by applying sanitizers to produce while it is still in the fields. (2020-09-08)

Stopping listeria reproduction 'in its tracks'
Listeria contaminations can send food processing facilities into full crisis mode with mass product recalls, federal warnings and even hospitalization or death for people who consume the contaminated products. UH researchers have discovered a chemical compound that stops listeria reproduction in both light and dark conditions which could lead to bacterial control in food products. (2020-07-27)

Listeria protein provides a CRISPR 'kill switch'
A single protein derived from a common strain of bacteria found in the soil will offer scientists a more precise way to edit RNA. (2020-07-13)

Sneaky salmonella finds a backdoor into plants
Researchers have discovered that bacteria such as salmonella, E.coli and listeria have a backdoor to take advantage of humans' reliance on leafy greens for a healthy diet. They found that wild strains of salmonella are delivering foodborne illnesses by circumventing a plant's immune defense system, getting into the leaves of lettuce by opening up the plant's tiny breathing pores. (2020-06-30)

Intensive farming increases risk of epidemics, warn scientists
Overuse of antibiotics, high animal numbers and low genetic diversity from intensive farming increase the risk of animal pathogens transferring to humans. (2020-05-04)

Too much salt weakens the immune system
A high-salt diet is not only bad for one's blood pressure, but also for the immune system. This is the conclusion of a study under the leadership of the University Hospital Bonn. Mice fed a high-salt diet were found to suffer from much more severe bacterial infections. Human volunteers who consumed additional six grams of salt per day also showed pronounced immune deficiencies. This amount corresponds to the salt content of two fast food meals. (2020-03-25)

SFU team helps discover potential superbug-killing compound
Researchers in Simon Fraser University's Brinkman Laboratory are collaborating with US researchers to test a new drug that can kill a wide range of superbugs -- including some bacteria now resistant to all common antibiotics. (2020-03-03)

'Scrambled' cells fix themselves
In the human body, cells shield themselves from disease-causing microbes by scrambling their lipids into liquids, according to new research by an international team headed by the Montreal Clinical Research Institute and Université de Montréal. (2020-01-28)

Scientists create listeriosis-immune mice by turning off gene in myeloid cells
An international research team which includes specialists from ITMO University has conducted a series of experiments to study the immune system and identify the genes and proteins involved in the response to certain harmful bacteria. The scientists found that ''turning off'' genes responsible for the production of the proteins Beclin 1 or FIP200 resulted in the test animals becoming nearly completely immune to the infectious disease listeriosis. The results have been published in Nature Microbiology. (2020-01-28)

Advancing frozen food safety: UGA evaluates environmental monitoring programs
Arlington, Va. - New research funded by the Frozen Food Foundation evaluates current environmental monitoring practices being implemented across the frozen food industry to prevent and control Listeria monocytogenes (Lm). The findings were published in the Jan. 24, 2020, Journal of Food Protection®. (2020-01-24)

Novel composite antimicrobial film could take a bite out of foodborne illnesses
A novel composite film -- created by the bonding of an antimicrobial layer to conventional, clear polyethylene plastic typically used to vacuum-package foods such as meat and fish -- could help to decrease foodborne illness outbreaks, according to researchers in Penn State's College of Agricultural Sciences. (2020-01-21)

A self-cleaning surface that repels even the deadliest superbugs
A team of researchers at McMaster University has developed a self-cleaning surface that can repel all forms of bacteria, preventing the transfer of antibiotic-resistant superbugs and other dangerous bacteria in settings ranging from hospitals to kitchens. (2019-12-13)

Advancing frozen food safety: Cornell develops novel food safety assessment tool
New research funded by the Frozen Food Foundation developed a modeling tool to assist the frozen food industry with understanding and managing listeriosis risks. The findings are published in the December 2019 issue of Journal of Food Protection. (2019-12-11)

Squid pigments have antimicrobial properties
Ommochromes, the pigments that color the skin of squids and other invertebrates, could be used in the food and health sectors for their antioxidant and antimicrobial properties. This is confirmed by the analyses carried out by researchers from the University of Sonora in Mexico and the Miguel Hernández University in Spain. (2019-12-05)

A protein tag to study the immune system
Researchers from VIB-UGent Center for Medical Biotechnology, University of Iowa (USA) and other collaborators, developed a novel approach to better understand a basic defense mechanism of our immune system. Central is ISG15, a small protein with a role in the immune system. With the newly developed method, scientists can now identify and study proteins tagged with ISG15, allowing them to unravel its many functions in fighting disease, potentially leading to novel antimicrobial drugs. (2019-11-26)

On the trail of pathogens in meat, eggs and raw milk
To make food even safer for humans, experts from scientific institutions, food regulatory authorities and the business community will discuss current developments and strategies at the 'Zoonoses and Food Safety' Symposium at the German Federal Institute for Risk Assessment (BfR) on 4 and 5 November 2019, in Berlin-Marienfelde. Because some micro-organisms in food can cause health problems. Campylobacter in raw milk, salmonella in eggs or listeria in ready-to-eat foods often lead to outbreaks affecting numerous patients. (2019-11-06)

Synthetic phages with programmable specificity
ETH researchers are using synthetic biology to reprogram bacterial viruses -- commonly known as bacteriophages -- to expand their natural host range. This technology paves the way for the therapeutic use of standardized, synthetic bacteriophages to treat bacterial infections. (2019-11-04)

Highly virulent listeriosis pathogen discovered
An international team of researchers identifies the genetic basis for the hypervirulence of a Listeria strain that can cause severe infections. The work was led by scientists at the Justus Liebig University Giessen and supported by the DZIF (German Center for Infection Research). (2019-10-09)

Systemic failures in public health system led to deaths in elderly patients
The deaths of 17 elderly people earlier this summer were the result of systemic failures in the public health system in England, according to a leading public health expert. (2019-08-22)

Foodborne pathogen sheltered by harmless bacteria that support biofilm formation
Pathogenic bacteria that stubbornly lurk in some apple-packing facilities may be sheltered and protected by harmless bacteria that are known for their ability to form biofilms, according to Penn State researchers, who suggest the discovery could lead to development of alternative foodborne-pathogen-control strategies. (2019-08-21)

Glow reveals dangerous bacteria
Salmonella and listeria are among the most widely distributed and deadliest causes of foodborne infections. Their rapid and reliable detection on food and industrial food processing equipment is very important. In the journal Angewandte Chemie, scientists have introduced a new, ultrasensitive, chemiluminescence-based method for the direct detection of Salmonella and Listeria monocytogenes. Because of the simplicity and sensitivity, this test is significantly faster than conventional methods and can be carried out in the field. (2019-07-02)

Pathogen engineered to self-destruct underlies cancer vaccine platform
A team of investigators has developed a cancer vaccine technology using live, attenuated pathogens as vectors. A feature of the vaccine causes these bacteria to self-destruct once they've done their job, making it safe for use in humans. (2019-06-24)

Paper stickers to monitor pathogens are more effective than swabs
Using paper stickers to collect pathogens on surfaces where antisepsis is required, such as in food processing plants, is easier, and less expensive than swabbing, yet similarly sensitive. The research is published in Applied and Environmental Microbiology, a journal of the American Society for Microbiology. (2019-05-24)

Cell-killing proteins suppress listeria without killing cells
New North Carolina State University research shows that key proteins known for their ability to prevent viral infections by inducing cell death can also block certain bacterial infections without triggering the death of the host cells. (2019-04-18)

Salmonella could be combated by enhancing body's natural process
Autophagy -- the process of recycling cellular material in the body, can help combat Salmonella and other pathogens according to researchers at the School of Life Sciences, University of Warwick who have studied how autophagy can get rid of bacteria, and prevent diseases developing. (2019-03-26)

Researchers find the immune system's unknown messenger
A previously unknown messenger which alarms nearby cells when the immune system recognises a bacterial or viral infection has been uncovered. Immunologists from Aarhus University, Denmark, are behind the discovery, which will help fighting infections and autoimmune diseases. (2019-02-25)

Survey: Misunderstanding food date labels linked with higher food discards
A new survey examining US consumer attitudes and behaviors related to food date labels found widespread confusion, leading to unnecessary discards, increased waste and food safety risks. The survey analysis was led by researchers at the Johns Hopkins Center for a Livable Future, which is based at the Johns Hopkins Bloomberg School of Public Health. (2019-02-19)

More scrutiny needed for less-deadly foodborne bacteria
Employing advanced genetic-tracing techniques and sharing the data produced in real time could limit the spread of bacteria -- Bacillus cereus -- which cause foodborne illness, according to researchers who implemented whole-genome sequencing of a pathogen-outbreak investigation. (2019-02-13)

Listeria in the feed: A dangerous hygiene problem in fattening pigs
In a recent study, researchers from Vetmeduni Vienna investigated an episode of fatal listeriosis in fattening pigs with a mortality rate of nearly 10 percent. The research team traced the source of infection to the fed silage. Following simple guidelines during the ensilaging process can minimize this risk -- with benefits for food safety and public health. (2019-01-25)

Computer program aids food safety experts with pathogen testing
Cornell University scientists have developed a computer program, Environmental Monitoring With an Agent-Based Model of Listeria (EnABLe), to simulate the most likely locations in a processing facility where the deadly food-borne pathogen Listeria monocytogenes might be found. (2019-01-24)

Farmers market vendors need training to improve food-safety practices
Many vendors at farmers markets take inadequate precautions to prevent the spread of foodborne illness, and they should be trained to reduce food-safety risks, according to Penn State researchers who completed the final phase of an innovative five-year study. (2018-11-01)

Superbug discovery renews hope for antibiotic treatment
Bacteria that were thought to be resistant to a powerful antibiotic may be susceptible to treatment after all, research from the University of Edinburgh has found. (2018-09-04)

Listeria surveillance: New EU-wide study reveals that most outbreaks remain undetected
More than half of the severe listeriosis cases in the European Union belong to clusters, many of which are not being picked up fast enough by the current surveillance system, suggests a new article published in Eurosurveillance. The large-scale study looked into listeriosis epidemiology through whole genome sequencing and found that this method, when implemented at EU-level, could lead to faster detection of multi-country outbreaks, saving up to 5 months of the investigations. (2018-08-20)

Cooking oil coating prevents bacteria from growing on food processing equipment
Many foods produced on an industrial scale include raw ingredients mixed together in enormous stainless steel machines that can be difficult to clean. The University of Toronto research team proposes a simple new solution: trapping a thin layer of cooking oil at the metal surface to fill in microscopic scrapes, cracks and fissures and create a barrier to bacterial attachment. This solution resulted in a 1,000x reduction in bacterial levels inside the industrial machines tested. (2018-07-27)

Listeria monocytogenes multi-country outbreak: 47 cases including 9 deaths
Frozen corn and possibly other frozen vegetables produced in a company in Hungary are the likely source of an outbreak of Listeria monocytogenes that has been affecting Austria, Denmark, Finland, Sweden and the United Kingdom. Despite the product recall ordered by the Hungarian Food Chain Safety Office, new cases may still emerge, says the updated risk assessment published by ECDC and the European Food Safety Authority (EFSA). (2018-07-06)

WSU researchers see human immune response in the fruit fly
Washington State University researchers have seen how both humans and fruit flies deploy a protein that a plays a critical role in their immune responses to invading bacteria. The discovery gives scientists evolutionary insight and a model organism with which to explore ways to boost the human immune system and create infection-fighting medicines. (2018-06-19)

Organic insect deterrent for agriculture
Traditional insecticides are killers: they not only kill pests, they also endanger bees and other beneficial insects, as well as affecting biodiversity in soils, lakes, rivers and seas. A team from the Technical University of Munich (TUM) has now developed an alternative: A biodegradable agent that keeps pests at bay without poisoning them. (2018-06-06)

UMD food scientist guides students towards revelatory findings in women's health
In an effort to sustain and educate the next generation of food safety experts in the United States, Dr. Bob Buchanan of the University of Maryland has served as a scientific mentor to a pair of academically accelerated high school students who are challenging the current food avoidance recommendations for pregnant women as established by the CDC and ACOG. (2018-05-25)

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