Listeria News and Research

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Listeria is a bacterial genus containing seven species. Named after the English pioneer of sterile surgery, Joseph Lister, Listeria species are Gram-positive bacilli and are typified by ''L. monocytogenes'', the causative agent of listeriosis.

Listeriosis and pregnancy

For years, doctors have puzzled over why pregnant women are 20 times more likely than others to be infected by the bacterium Listeria monocytogenes. Researchers at the University of California, Berkeley, now think they have the answer, and it isn't pretty.

3 Jul 2006

New treatment for food poisoning

A team of researchers working at the University of Bristol has found a potential new treatment for listeriosis, a deadly form of food poisoning. Their work is reported in Nature Medicine.

10 May 2006

Novel vaccine approach to listeria - potential protection against other intracellular bacterial pathogens

When bacterial pathogens attack the surface of a cell, vaccine-induced antibodies can mount a formidable defense and fend off the bad bugs.

21 Mar 2006

Interferon-producing killer dendritic cell speeds up immune reactions and fights cancer

A mouse immune cell that plays dual roles as both assassin and messenger, normally the job of two separate cells, has been discovered by an international team of researchers from the United States and France.

7 Mar 2006

Cervical cancer vaccines in development

Two preventative vaccines, Gardasil (Merck) and Cervarix (GlaxoSmithKline) that work against the Human Papilloma virus (HPV) - a sexually transmitted infection and the primary cause of cervical cancer - are gaining favorable attention.

27 Feb 2006

Copper could help prevent the spread of flu infections

Copper could help prevent the spread of flu infections. Recent research at the University of Southampton shows that the Influenza A virus is virtually eradicated within six hours on copper surfaces.

2 Feb 2006

10-minute test for Escherichia coli bug

A handheld sensor that can quickly spot contamination by deadly strains of the Escherichia coli bug could help prevent infected food reaching consumers.

2 Feb 2006

Evidence is mounting to link toxoplasmosis with schizophrenia

Keep pet cats inside, stop feeding strays, cook meat sufficiently and reconsider the way the veterinary profession and public health agencies think - and teach - about the zoonotic pathogen Toxoplasma gondii.

18 Oct 2005

Cancer vaccine based on the bacterium Listeria monocytogenes, can cure mice with breast tumors

A team from the University of Pennsylvania School of Medicine has shown that by using a cancer vaccine based on the bacterium Listeria monocytogenes, they can cure mice with established breast tumors. Cancer vaccines, which are more properly described as immunotherapy, work by boosting an immune response against tumor-associated antigens.

27 Sep 2005

Finding foodborne illness outbreaks sooner, faster

If 25 people eating at a single banquet hall became sick and needed hospitalization, determining the cause could be as easy as checking the dinner menu. But if those same people were scattered across 20 states and became ill after eating food processed at a single site, identifying the link could sometimes be impossible.

2 Aug 2005

New miniature sensors for analysing DNA

The sensors have the same size and thickness as a fingernail and reduce the time needed to identify DNA chains to several minutes or a few hours, depending on each chain.

3 Apr 2005

Scientists provide insight into the molecular mechanisms behind Listeria monocytogenes

When the bacterium Listeria monocytogenes invades the body, it commandeers its host cell's actin cytoskeleton to invade other cells. In a report published in the Journal of Biological Chemistry, a group of scientists provide insight into the molecular mechanisms behind this infection technique.

21 Mar 2005

Report finds Listeria Rule sparks major industry changes

A report outlining the impact of the interim final rule designed to further reduce the incidence of Listeria monocytogenes (LM) in ready-to-eat (RTE) meat and poultry products and making recommendations for possible future actions was released for public comment by the U.S. Department of Agriculture's Food Safety and Inspection Service (FSIS).

3 Dec 2004

Vaccine provides new hope to the millions of people who suffer from food allergies

A team led by a researcher at the Stanford University School of Medicine has developed vaccines that vastly reduce or eliminate dogs' allergic reactions to three major food allergens: peanuts, milk and wheat. The vaccines' benefits lasted at least three months.

14 Nov 2004

Researchers find that berries inhibit growth of harmful intestinal bacteria

A research project carried out by VTT Biotechnology and the University of Helsinki has found that cloudberries and raspberries contain a phenol, ellagic tannin, that inhibits the growth of intestinal bacteria.

2 Nov 2004

Tabletop DNA test laboratory cuts disease diagnosis down to 30 minutes

British scientists have developed a tabletop DNA test laboratory that can cut the diagnosis of disease and infection from hours to 30 minutes. This new test laboratory will soon begin trials in UK hospitals.

24 Oct 2004

Cancer vaccine based on listeria bacteria shows promise

An experimental cancer vaccine using defanged listeria bacteria is showing great promise in animal studies, successfully treating new cancers that have spread into the lungs of mice.

29 Sep 2004

Brazilian Government approves DuPont system that detects salmonella

The BAX® system, a genetics-based diagnostic tool developed by DuPont Qualicon, has been approved by the Ministry of Agriculture in Brazil as an Official Reference Method to detect Salmonella in food, water and environmental samples.

8 Jul 2004

MRSA contamination can be reduced by using copper alloys for surfaces in healthcare facilities

Methicillin resistant Staphylococcus aureus (MRSA) is a virulent organism, essentially resistant to all beta-lactam antibiotics (for example: penicillins, ampicillins, cephalosporins). It can cause skin, bone and life-threatening blood infections, as well as pneumonia.

7 Jul 2004

76 million people get sick in US, 300,000 are hospitalized, and 5,000 die from foodborne illness

Foodborne illnesses have a major public health impact in the United States. It is estimated that each year in the United States, 76 million people get sick, more than 300,000 are hospitalized, and 5,000 die as a result of foodborne illnesses, primarily the very young, elderly, and the immunocompromised.

18 Apr 2004