Category Archives: Foodborne Illness

USA – E.coli Outbreak Linked to Unpasteurised Cider

Food Poisoning Bulletin

The Health Department of Northwest Michigan, along with Community Health and the Michigan Departments of Agriculture and Rural Development are investigating a series of E. coli infections that may be associated with unpasteurized, unlabeled apple juice in Antrim County. Officials are collecting stool samples and samples of the cider to test for the outbreak strain of the bacteria.

The cider was made by an unlicensed facility and was not labeled as unpasteurized.

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.

UK – Another Crusie Ship Virus Outbreak

BBC News

A cruise ship delayed its departure from Southampton after a suspected outbreak of norovirus on board. Celebrity Cruises’ vessel Constellation arrived in the city’s port at 06:00 GMT at the end of a 12-night cruise. Southampton’s Port Health Authority said about 350 passengers had fallen ill with the vomiting and diarrhoea bug. Its departure was delayed until 20:00 while deep cleaning took place.

The authority’s Rosie Zambra confirmed it was informed of “concerns over an increased levels of what appeared to be norovirus” several days before the ship’s arrival.

USA – Norovirus Outbreak at a Restaurant

Food Safety News 

At least 39 people fell ill with Norovirus infections after eating at a restaurant in central Illinois last week, according to the local health department.

All of those sickened were among a group of 80 people who attended an end-of-year banquet for a high school soccer team at Alexander’s Steakhouse in Peoria, IL October 28, reported the Peoria Journal Star.

Though the restaurant served a total of 1,100 meals the weekend the banquet was held, no patrons other than those who attended the banquet contracted the virus.

Victims experienced typical symptoms of Norovirus infection, including vomiting, diarrhea and abdominal cramps.

CDC Letter – UK Shellfish Market and Viruses – Hepatitis E

CDC (full letter)

Bivalve mollusks (shellfish), such as mussels and oysters, are filter feeders; they concentrate microorganisms of human and animal origin (up to 100×) from the surrounding environment. Several recent reports have linked the incidence of human infection with hepatitis E virus (HEV) to consumption of undercooked pork, game products, and shellfish (1,2). Infectious HEV has been found in swine manure and wastewater (3); therefore, application of manure to land and subsequent runoff could contaminate coastal water, leading to contamination of shellfish and, subsequently, possible human infection. Because they are filter feeders, bivalve mollusks are biologically relevant sentinels and can indicate potential pathogens that are contaminating the environment. It is essential to ensure that this sustainable resource of coastal areas, where mussels and oysters are farmed or collected wild, is not subjected to environmental contamination that could lead to public health risks.

Risk management for bivalve mollusks, aimed at control of fecal pollution, relies heavily on the use of Escherichia coli as an indicator of fecal (sewage) contamination and is enacted under European food regulations (Regulation 854/2004, www.cefas.co.uk/media/455777/extract_reg_no_854_2004.pdf Adobe PDF file). However, although these regulations probably reduce the number of infections, especially bacterial infections, they are not viewed as adequately controlling the risk for viral infections. Specific risks are posed by the robustness of viruses in the environment and the different behavior of viruses within bivalve mollusks compared with behavior within bacterial fecal indicators.

Canada – Montreal – Norovirus Hospital Outbreak

CBC News

An outbreak of norovirus among staff members at Montreal’s Jewish General Hospital led to the temporary closure of the hospital’s neurology clinic last week, CBC has learned.

About 45 employees at the hospital came down with gastrointestinal symptoms, including diarrhea, cramps and fever, after eating food that may have originated in an in-house catering service that is only used by staff.

The service is run by the hospital’s Atrium Café, a franchise operated by a volunteer auxiliary, which also serves hundreds of staff and visitors to the hospital each day.

The coffee shop is independent of the hospital’s main cafeteria.

“We closed the coffee shop immediately on Thursday afternoon,” said hospital spokesman Glenn Nashen. “Tests were done all day Friday, and although nothing has been conclusive at this point, the suspicion is that [the virus] may have come from this catering service.”

Nashen said as far as the hospital knows, only staff at the hospital caught the virus.

So many staff members in the neurology department fell ill that the neurology clinic had to be closed for half a day on Thursday and all of Friday.

The neurology clinic is expected to be open again on Monday.

Until the infection prevention and control team determines the specific cause of the outbreak, the coffee shop will remain closed, Nashen said

UK – HPA – Legionnaires Information and Research

HPALeigionella

 

Around half (116) of the 235 cases of Legionnaires’ disease reported to the Health Protection Agency (HPA) in England and Wales in 2011 were in returning holiday makers. The annual number of Legionnaires’ cases has fallen from 355 cases in 2010, when around a third (114) were in returning travellers.

Legionnaires’ disease can be contracted by breathing in droplets of water or aerosols containing the legionella bacteria from water sources which may have had temperature problems, or where water has remained stagnant for a period of time. Spa pools, shower heads or taps can sometimes be the source of an outbreak.

The illness usually affects vulnerable people, such as the elderly and almost 70 per cent of the cases reported in 2011 were in people with an underlying health condition, including almost 30 per cent in people with heart disease. Smokers and people with diabetes or a weakened immune system were also at higher risk.

 

Research – E.coli Outbreak 2011 in Germany

HACCPEUROPA – Full Article

A novel strain of E. coli bacteria caused a serious outbreak of foodborne illness focused in Germany in 2011. In all, 3,950 people were affected and 53 died, including 51 in Germany. Authorities have identified vegetable sprouts as the source.

The recent outbreaks of food poisoning due to contamination of vegetables by dangerous strains of E. coli raised the concerns and questions about E. coli transmission strategies.

E. coli is most at home in the warm, moist, nutrient-rich environment found in the gastrointestinal tract of warm-blooded animals. But to disperse from one host to another these bacteria must get out into the world. There is evidence that some E. coli can survive for several weeks outside the host, and even grow in water or soil. But it is on plant matter that E. coli colonisation has become a concern, as although most types of E. coli are harmless, the presence of pathogenic strains on fruit and vegetables presents a food safety risk.

E. coli strains have adopted slightly different transmission strategies, with some being better adapted to live on plants than others.

The African Union to Establish a Food Safety Authority.

HACCPEUROPA

The African Union announced an establishment of a food safety authority as well as a Rapid Alert System for Food and Feed (RASFF) yesterday in Kigali. The Minister of Trade and Industry, Francois Kanimba, said the continent ought to have the food safety body based on the European model but tailor-made for Africa. The decision has been made following huge losses in international trade due to food safety issues. The minister pointed out that African food exports are at times destroyed or refused entry into developed markets thus leading to losses.

It is believed that the establishment of the authority would boost trade competence and avert food-borne diseases. It would uplift the living standards of Africans, especially those in rural areas.

Northern Irelands Biggest Ever E.coli Outbreak.

Food Safety News

At least 269 people are suspected to have fallen ill in an outbreak of E. coli O157:H7 after eating at a restaurant in Belfast, Northern Ireland’s Public Health Agency announced on Sunday. This is by far the largest E. coli outbreak in the nation’s history.

The number ill consist of 90 laboratory-confirmed cases and another 179 probable cases. Probable cases are those with exposure and corresponding symptoms, but who have not been tested for E. coli infection in a clinical laboratory.