Category Archives: Norovirus

Winter Vomiting- Cruise Ships – Hospitals – Christmas Parties – Restaurants

Billings Gazette

CASPER, Wyo. — The Golden Corral restaurant in east Casper is closed until at  least dinnertime Friday after a suspected foodborne virus outbreak at the  location affected more than 150 people, according to David Giesen, president of  franchisee Golden DBL Inc. of Denver.

The restaurant was closed Thursday afternoon. Giesen said the shutdown is  voluntary while staff members clean and disinfect the restaurant and the Natrona  County Health Department continues its investigation.

Natrona County Health Department Director Bob Harrington said Thursday that  167 people have reported being ill after eating at the restaurant this past  week.

Norway Christmas

At least 170 people have become ill after having been at a Christmas party at Klækken hotels on Ringerike the weekend. Possible virus.

CDC

Noroviruses are responsible for more than half of all reported outbreaks of gastroenteritis (vomiting, diarrhea, and stomach cramping caused by inflammation of the stomach and intestines). While the vast majority of norovirus illnesses are not part of a recognized cluster, outbreaks provide important information on how the virus spreads and, therefore, how best to prevent infection.

Norovirus outbreaks occur throughout the year. But, over 80% of the outbreaks occur from November to April. Also, when there are new strains of norovirus, the number of outbreaks tends to increase periodically. This occurred in the winter of 2006 to 2007 with the Minerva strain. However, a new strain that appeared in 2009 (New Orleans) did not lead to more outbreaks.

Most outbreaks are caused when norovirus is spread from infected people to others. But, the virus can also spread by consuming contaminated food or water and touching things that have the virus on them. People can get norovirus illness many times during their lifetime. Outbreaks can affect people of all ages and in a variety of settings.

The Guardian

A dream Christmas cruise has turned into the holiday from hell, according to passengers who claim as many as 400 travellers have been struck down with the norovirus winter vomiting bug.

One traveller aboard the P&O liner Oriana, which is on a 10-night Baltic cruise out of Southampton visiting Christmas markets, said people felt like they were sailing on a “plague ship”.

 

UK – 5 Hospitals with Norovirus

BBCNorovirus

The diarrhoea and vomiting bug norovirus has spread to five hospitals across north Wales, with 31 patients falling ill, a health board says.

Visitors are being urged to help stop the infection at Ysbyty Gwynedd, along with Dolgellau, Colwyn Bay, Glan Clwyd and Wrexham Maelor hospitals.

Betsi Cadwaladr University Health Board says there are restrictions on admissions at eight wards.

The number of norovirus infections in the UK is at higher levels than normal.

BBC News

 

UK – Norovirus Cruise Ship

News TankORIANA

The ‘Norovirus’ winter vomiting bug has reportedly scarred the luxury cruise ship, Oriana, with at least 150 of the almost 2000 holidaymakers journeying on P&O’s Oriana falling ill because of the Norovirus. Passengers on board the luxury cruise ship have described Oriana as a ‘plague ship’ and ‘a nightmare,’ with one passenger accusing the crew members of neglecting the suffering of those passengers tormented by the Norovirus winter vomiting bug.

One passenger has penned his review of Oriana on a travel website under the user name, Gibbons, describing how corridors and lavatories on board the luxury cruise liner smelt strongly of sick. The passenger further reviewed that the Norovirus outbreak on Oriana has made him wish that he had never booked a seat in Oriana in the first place.

The media reports over the Norovirus outbreak in Oriana have suggested that there is a possibility of a riot on the luxury cruise ship because the captain and the crew of Oriana are allegedly refusing to heed the concerns of the passengers troubled by the winter vomiting bug.

USA – Norovirus Healthcare Professionals Meeting

Food Safety News

Around 90 people fell ill with gastrointestinal symptoms after attending a meeting of women healthcare professionals at the Oregon Zoo last week.

The meeting was attended by 220 members of the Women’s Healthcare Associates group last Wednesday morning. After the event, nearly 100 people became sick with what officials believe was Norovirus infection, according to The Oregonian.

“Norovirus is the most likely culprit,” Dr. Kristina Hedberg, a state epidemiologist, told the paper.

RASFF/European Alerts – Salmonella, E.coli, Listeria, Norovirus, Clostridium, Enterobacteriaceae

RASFF – Salmonella in Celery in Denmark sourced in Vietnam

RASFF – Enterobacteriaceae in Dog Chews in Italy sourced in China

RASSF – Norovirus in Clams in France sourced in the UK

RASFF – Salmonella in Beef Meat in Sweden via Germany/Netherlands

RASFF – Clostridium and E.coli in Green Beans in Denmark sourced in France

France – Listeria in Fresh Goats Cheese

 

 

Research – Norovirus v Dishwashers

Food Poisoning Bulletin

What do norovirus and baked-on lasagna have in common? Both can survive the dishwasher.

Researchers at Ohio State University have made a discovery that may help to explain why restaurants have a hard time controlling the spread of norovirus, the leading cause of food poisoning worldwide. About half of all foodborne illness outbreaks in the US are caused by norovirus, most of them, about 80 percent, happen between November and April, according to the Centers for Disease Control and Prevention (CDC).

HPA – UK – 2012 Norovirus Report

NHS Norovirus

Many newspapers are reporting on the Health Protection Agency’s latest figures on the ongoing outbreak of Norovirus – the so-called winter vomiting disease. The data suggest that cases of the virus, which are usually highest after Christmas, are high for this time of year.

According to data available up to December 2 2012, there have been 2,313 confirmed laboratory reports (which is 64% higher than the same period in the last season). But the HPA estimates that for every confirmed report there are another 288 unreported cases.

This means that as many as 666,144 people could have been affected in this outbreak of norovirus. This number is expected to continue to rise.

Research – Norovirus and Cleaning

HACCPEUORPA

Noroviruses are a group of viruses that are the most common cause of gastroenteritis (stomach bugs). They are very contagious and can spread easily from person to person. People exposed to the virus usually develop symptoms of illness within 24 to 48 hours, but symptoms can occur as early as 12 hours after exposure.

Common-sense based disinfection guidelines to control norovirus contamination have been developed, but now, for the first time, a Dutch team has come up with science-based guidelines.

In the study the researchers first determined how low the concentration of virions needed to go for transmission to become unlikely. They then tested different methods of cleaning hard surfaces, by using water, soap, or chlorine bleach solutions to determine the best method, or combination of methods for achieving a sufficiently low concentration to prevent virus transmission from hard surfaces, such as your kitchen counters.

The researchers prescribe a two-step process: wipe with a wet cloth, and then disinfect with chlorine. Their prescription is directed at hospitals, schools, restaurants, and other food-handling establishments. In most cases, a 250 ppm solution of chlorine is sufficient, but for high levels of contamination, they recommend 1,000 ppm. To achieve 1,000 ppm, one Suma Tab D4 tablet must be dissolved in 1.5 liters of water (about a quart and a half).

Norovirus is no more resistant to cleaning and disinfection than other pathogens. The virus’ efficiency in causing outbreaks “is more likely due to their extremely low infectious dose,” resulting in the requirement of a very low level of residual contamination in order to prevent further transmission. Fortunately, reducing the level of residual contamination to that low level is not that difficult and can be achieved without extreme measures.

UK – London – Norovirus Outbreak

London Evening Standard

A Primrose Hill school was closed today after more than 200 pupils and 15 members of staff were struck down with the contagious Norovirus.

Health inspectors ruled the winter vomiting bug was present at North Bridge House Preparatory School. The building in Gloucester Avenue was being cleansed today amid fears the virus could spread to the school’s other buildings.

In a letter sent to parents, headteacher Brodie Bibby said the school was “afflicted by a particularly unpleasant virus.”

Any children showing signs of sickness were told to be kept at home by parents, she wrote – adding that any children still well enough were invited to attend a planned performance of Swan Lake tomorrow night.

She added that “a specialist team will clean the entire school with anti-viral sprays and use air-based products.”

One parent told a local newspaper that his daughter “suddenly turned white and projectile vomited all over her bedroom” after being struck down with the illness this week.

North Bridge House, which also has a nursery school, a junior and a senior school at different sites in Camden, will reopen on Monday.

Belgian – Research – Grape Seed Extract Reduces the Infectivity of Norovirus

HACCPEUROPA – Full Article

Norovirus causes more than half of all food-borne illnesses in the United States, and is the second greatest source of reported food borne illness outbreaks in the European Union. A norovirus is a small virus that contains RNA and is surrounded by a protein coating. By sequencing the RNA, scientists have discovered that there are many different types of norovirus. Originally, strains were named based on the city in which they were first identified. Thus, one common strain used to be called Norwalk virus. Based on genetic typing, we now know that there are at least 25 different strains of norovirus that affect humans.

A recent study found that grape seed extract could reduce the infectivity of Norovirus surrogates.

Researchers from Ghent University, Belgium have shown that grape seed extract does so by denaturing the capsid protein, which is the coat of the virus, thereby disabling the virus.

In the study, the researchers observed that under treatment with grape seed extract, at low doses, the spherically-shaped murine (mouse) norovirus-1 coat proteins clumped, and showed obvious deformation and inflation. At higher doses, the researchers saw no coat proteins, only protein debris. This provides evidence that grape seed extract could effectively damage the norovirus capsid protein, which could reduce viral binding ability and infectivity accordingly.