Norovirus

  • Posted: February 10th, 2012 - 1:42pm by Doug Powell

    Most of the 100-plus people infected with norovirus last month had eaten at a local Subway franchise.

    The Star Press reports an investigation by the Blackford County Health Department (that’s in Indiana) was unable to determine whether a customer or an employee spread the virus, also known as a stomach bug and food poisoning.

    "We don't know how it bounced in there," said Linda Briles, an environmental health specialist at the department. "We may never know. I use the term 'bounced in there,' either www.barfblog.com/blog/152553/12/01/14/eat-fresh-90-sick-norovirus-linked-indiana-subwaywith an employee or a customer, I don't know. But it bounced in and went from there."

    She said the virus could have been spread by a customer who failed to properly wash his or her hands after using the restroom. "A customer could have left it on a door knob," Briles said. "It (transmission) is fecal-oral. Or an employee could have caused it by poor hand washing."

    An outbreak investigation report from the state department of health won't be completed for several months, spokeswoman Amanda Turney said. A state epidemiologist will conduct a "hot wash" meeting today with the county health department staff to identify lessons learned from the outbreak.

    "I want to do a final hot wash before I release my report (of the investigation to the public)," Briles said. "It should be available after I get down to the state health department and have it checked by the media (relations office)."

    Briles said tests showed that more than one Subway employee was infected with the norovirus. "They were sick the same time everyone else was," Briles said. To her knowledge, the infected employees were not sick before the outbreak.

    There has been an Indiana administrative code regulating food workers with diagnosed illnesses since 2000, but it wasn't being enforced in Indiana until 2008.

    Under the code, any food employee who is diagnosed with one of the following illnesses must be excluded from the food establishment: salmonella, shiga toxin-producing E. coli, shigella, hepatitis A or norovirus.

    From company headquarters in Milford, Conn., Subway public relations manager Kevin Kane said, "Upon learning of the norovirus investigation by the Blackford County Health Department, the franchisee in Hartford City voluntarily closed the restaurant and had an independent company come in to thoroughly clean and sanitize the restaurant. This was in addition to the stringent cleaning and sanitizing procedures practiced here on a daily basis.

    Despite hiring an independent contractor to sanitize the restaurant, Subway was cited by Briles for mold, dirty floors and other violations after re-opening.

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  • Posted: February 8th, 2012 - 7:02pm by Doug Powell

    Norovirus is making the rounds in Madison, Wisconsin, with five food-related outbreaks since last November.

    Dane County health officials are still waiting for test results from the most recent outbreak. It took place Jan. 29 when at least 16 people had vomiting and diarrhea after eating sandwiches and other food at the Mandrake Road Church of Christ in Madison.

    Also last month, 28 people got sick after eating at Erin’s Snug Irish Pub in Madison. The other outbreaks took place at a drama-filming session at Madison West High School, the Pyle Center at U W Madison, and a Madison art show.

    Health department epidemiologist Amanda Kita-Yarbro says the five outbreaks in a three-month period are a first for her agency. She said it could have been spurred either by food workers or people attending the various events.

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  • Posted: February 3rd, 2012 - 6:33am by Doug Powell

    Cleaning up vomit promptly is crucial to containing the spread of bugs like norovirus as 300 staff and students at a Jesuit high school in San Francisco discovered Wednesday.

    The outbreak at Saint Ignatius College Preparatory school, initially believed to have been caused by a virus, sent a handful of the sickened students to hospital emergency rooms for treatment of dehydration, principal Patrick Ruff said.

    School spokesman Paul Totah said roughly 300 pupils in all, out of the school's 1,360-member student body, were believed to have been affected in some way.

    Extra maintenance staff were brought in to scour the entire school with a bleach-based solution, and the process will be repeated on Thursday, Ruff said.

    The school consulted with San Francisco health inspectors, who visited the school Wednesday and ruled out cafeteria food or waterborne sources for the outbreak, he said. Further testing is needed to determine whether norovirus, a common cause of gastroenteritis, was the culprit.

    Dr. Tomas Aragon, San Francisco's chief medical officer, said the outbreak may have originated from a single infected student who got sick in an often-used doorway.

    "A student vomited on central doors, on the rods that open these big doors. Then the bell rang and a lot of students went through that door."

    Aragon said the norovirus can survive on surfaces for days and is highly contagious.

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  • Posted: February 1st, 2012 - 11:40pm by Doug Powell

     Traducido por Gonzalo Erdozain

    Resumen del folleto informativo mas reciente:
    - Brotes de Norovirus en aumento en Carolina del Norte
    - Personas infectadas pueden diseminar grandes cantidades del virus a través del vomito y diarrea.
    - El virus puede permanecer en superficies comunes de la cocina por hasta 6 semanas.
    - La mayoría de los desinfectantes de manos son inefectivos contra norovirus.

    Los folletos informativos son creados semanalmente y puestos en restaurantes, tiendas y granjas, y son usados para entrenar y educar a través del mundo. Si usted quiere proponer un tema o mandar fotos para los folletos, contacte a Ben Chapman a benjamin_chapman@ncsu.edu.

    Puede seguir las historias de los folletos informativos y barfblog en twitter
    @benjaminchapman y @barfblog.

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  • Posted: January 30th, 2012 - 5:32pm by Ben Chapman

    Author: 
    Ben Chapman

    I'm currently experiencing the warmest winter I've ever had - Raleigh hasn't had a day below freezing (a few nights) and I have yet to scrape my car off in the morning. Yesterday I strapped my kids into a bike trailer and rode around on a few paved trails and tomorrow it's going to be close to 70F. I love the south. But just because it's warm doesn't mean that the state will avoid norovirus - the famed winter vomiting sickness.

    In 1929 Dr. John Zahorsky wrote about a history of gastrointestinal illness events, which would become norovirus. After seeing children develop sporadic cases of vomiting, supplemented by watery diarrhea each year between November and May, through over 30 years of clinical practice, he coined the term winter vomiting sickness.

    Over 125 folks in Conover NC dealt with a norovirus outbreak back in mid January. According to the Raleigh News & Observer, most illnesses were linked to eating at the Harbor Inn Seafood restaurant on January 13 and 14 - but some folks got sick after eating there as recently as January 20th.

    Catawba County Public Health has been working with the N.C. Division of Public Health to figure out what's been making people sick since the first cases were reported Jan. 17.

    Although Public Health has not announced what food or foods caused the illness, victims have stated that the members of their party who got sick after eating at Harbor Inn were the ones who ate tossed salad.


    Neither tossed salad or an exposure period of over a week would be all that surprising - tossed salad can be prepped by someone who doesn't see themselves as a food handler - and noro, especially in cooler months, is pretty stable in the environment (and could stick around to infect for weeks).
     

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  • Posted: January 22nd, 2012 - 11:38pm by Doug Powell

    This sounds like norovirus. And some investigators discovering that youngsters use different ways to communicate.

    Michelle Ferguson tried to avoid it, but the rapid onslaught of nausea took its toll on her body when she suddenly vomited in the back seat of a school bus last weekend.

    She and her fellow delegates, attending a journalism conference in downtown Victoria, were on their way to the Vertigo nightclub for the final gala when dozens of formally dressed students started vomiting on the buses, in their hotel and at the club.

    Almost instantly, messages on Twitter told the stories of people suffering from extreme stomach pain, vomiting and diarrhea. Staff at Canadian University Press, who organize the conference every year, contacted health officials as the numbers increased. Within minutes, delegates were asked to return to the Harbour Towers Hotel and Suites.

    The well-documented outbreak is considered a successful example of the effectiveness of communicating through social media. The conference's Twitter hashtag, #nash74, led news agencies to the story, became a slick crisis-control tool and has inspired health officials to consider using similar methods to monitor outbreaks.

    "It would be fascinating to learn how to use social media to control and manage outbreaks like they did," said Dr. Murray Fyfe, chief medical health officer for the Vancouver Island Health Authority. "I'm sure some were able to limit their exposure because of it."

    Messages about the widespread vomiting were sent out on #nash74. CUP staff saw the numbers climbing and shut down the gala.

    CUP staff went door-to-door as well, but nothing worked more efficiently than Twitter, according to students.

    "I feel a lot more people would have gotten sick without Twitter," Mattern said. "This whole thing would have played out a lot differently."

    Methods for tracking and managing outbreaks could change because of the role Twitter played in this incident.

    Fyfe and his staff have analyzed the Twitter feed from the conference and could follow how the outbreak spread.

    "A traditional investigation would have trouble getting those details," he said. "We're interested in partnering with people who have expertise in social media to use it as a tool to investigate outbreaks and as a communication tool to control outbreaks."

    Contact us any time.

     

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  • Posted: January 22nd, 2012 - 8:11pm by Doug Powell

    Last May, it was reported that 195 of the 580 people served Easter Brunch at Luciano's Cotton Club in Worcester, Mass. were struck by norovirus contracted from a sick employee, and the incident was chronicled on Yelp and a food safety site called barfblog.com.

    “I would really drive home the point that they had a problem, investigated to determine what it is, and outlined a plan for what we're going to do from now on,” said Gregory Charland, founder and chief executive officer of Charland Technology, a Hubbardston-based company offering a wide range of technology services. “Organizations should use problems like that to really do some soul searching and figure out how and why this happened. The overriding concept to underline is that they are never going to have their name in the news about this again.”

    (Hint, and it’s in the blog post: don’t let sick employees work, even at an Easter buffet).

    Alex Barbosa, the restaurant's manager, declined comment.

    That’s one anecdote in a story about on-line reviewing, which some love and some hate.

    Alec Lopez dislikes consumer-driven review websites like Yelp, TripAdvisor and UrbanSpoon.

    The owner of Armsby Abey in Worcester, Mass. said, “I don't read reviews often,” Mr. Lopez said. “I hate Yelp because it's an unanswered forum for people to bitch. I feel like it's a green light to voice your opinion without consequences.”

    Worcester native Andrew Chandler, a 29-year-old medical student at the University of Massachusetts Medical School, had an unpleasant dining experience at Armsby Abbey, and chronicled it on Yelp.

    “I was really sad to have done it, but I think that when a place isn't responsive or accommodating, people should know about it. I was hoping Armsby Abbey would read it and respond. I think it goes a long way if a manager explains what the circumstances were, and how they'll prevent the problem from happening again. Today, online reviews can make or break a customer's decision.”

    In September, Harvard Business School professor Michael Luca released research that found a one-star rating increase on Yelp directly led to a 5 percent to 9 percent boost in revenue for independent restaurants, with comparable projections for independents in other industries. Despite the growing influence of Yelp and similar websites, business owners like Mr. Lopez continue to ignore — or worse, incorrectly address — negative feedback when it comes in the form of an online review.

    With 61 million monthly visitors and 22 million reviews online by the end of the third quarter last year, Yelp is the most popular online review destination for everything from dentists to dieticians. Yelp's popularity is proof that consumers trust reviews written by the average Joe, and enjoy contributing their own 2 cents.

    Wilson Wang, chef and owner of Baba Sushi in Worcester, said he checks online reviews of his restaurant “all the time,” monitoring what diners like — and don't like.

    Mr. Wang, whose customers' reviews currently rank Baba Sushi 4.5 out of 5 stars on Yelp.com, said he doesn't respond personally to people's comments but rather sees such reviews “as a mirror” to reveal what could be done better. “We are on the high level and we are really proud,” he said last week.

    Yelp and websites like it open the door for independent businesses with limited marketing budgets, giving them an opportunity to advertise through old-fashioned word of mouth in a high-tech world. They offer a safety net to consumers who, with a few keystrokes, can be reassured that trying something new — rather than falling back on the reliability of a chain — won't be a waste of their money.

    “Every time I've given a negative review and gotten some sort of constructive, non-judgmental response, I've made it a point to go back to whatever business it was and give them a clean slate,” said Amy Jamieson, a 42-year-old Yelp user and homemaker from Worcester. “If they're willing to try again, so am I.”

     

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  • Posted: January 21st, 2012 - 5:09am by Doug Powell

    The Victoria Times Colonist (that’s in British Columbia, in Canada) reports 147 delegates are believed to have contracted norovirus during the final night of a four-day university journalism conference at the Harbour Towers Hotel and Suites, and the final tally has yet to come.

    More than one- third of the 370 delegates attending the Canadian University Press national conference went down with severe nausea, vomiting and diarrhea.

    Eighteen hotel staff also contracted the virus about 24 hours after the first few students showed symptoms, according to hotel management.

    "That's a really significant outbreak," said Dr. Murray Fyfe, chief medical health officer for the Vancouver Island Health Authority. "And the fact that we had people who were perfectly well and then became ill after coming into contact with others or got sick when they got home, that's really typical of norovirus."

    The highly contagious virus kept some delegates isolated in their hotel rooms for days before they could check out.

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  • Posted: January 18th, 2012 - 3:45am by Doug Powell

    Barf happens, and the newly converted are quick to cite lessons learned, but the challenge remains – how to get people to pay attention before the outbreak happens?

    The Vancouver Sun reports the final two dozen university conference delegates left Victoria on Tuesday after days of battling a painful norovirus outbreak that is believed to have infected about 75 people.

    About 370 delegates arrived in the city for a national Canadian University Press conference on Jan. 11.

    The journalism convention quickly made national headlines on Sunday morning after the virus rapidly spread throughout the Harbour Towers Hotel and Suites where they all stayed.

    Those who were not infected — and some who were — made their way home Sunday, while the rest stayed an extra night or two waiting for their symptoms of vomiting, severe stomach pains and diarrhea to pass.

    A shuttle bus took about 13 delegates to the Victoria Airport Tuesday morning with another five or six following them in the afternoon, according to university press staff.

    Some students were reporting getting sick during their travels home and some even after they arrived. But with the worst behind them, delegates got back to classes and work.

    “If anything, this entire conference, this entire situation, has been a lesson for us in terms of crisis communication,” said Emma Godmere, the CUP national bureau chief, who became a co-ordinator of all communication as information was sent out via Twitter.

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  • Posted: January 17th, 2012 - 1:27pm by Doug Powell

     The most effective public health measures to protect consumers from exposure to norovirus in oysters are to produce oysters in areas which are not contaminated or to prevent contamination of mollusc production areas.

    And current methods used to remove norovirus in shellfish are not an effective means of reducing contamination.

    So says the European Food Safety Authority (EFSA) Panel on Biological Hazards (BIOHAZ Panel) in a new risk assessment.

    The Panel recommends establishing acceptable limits for the presence of virus in oysters that are harvested and placed on the market in the European Union. In addition, an EU-wide baseline survey on norovirus in oysters should be carried out to provide information on overall consumer exposure as well as the public health impact of control measures.

    Norovirus is transmitted through the consumption of food or water contaminated with fecal matter or through person-to-person contact or contact with infected surfaces. Oysters contaminated with norovirus pose a particular risk to human health as they are often consumed raw.

    EFSA’s BIOHAZ Panel concludes that norovirus is highly infectious and that the amount of the virus detected in oysters linked to human cases can vary greatly.

    Scientists highlight that norovirus is frequently detected in oysters in Europe which comply with existing EU control standards for bivalve molluscs.

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