Virus (Norovirus, Hepatite A et E, Rotavirus, Adénovirus, Astrovirus...), Bactéries (Campylobacter, Vibrio, Cronobacter, ECEH, E.coli...) des pathogènes émergents qu'il faut surveiller !
Affichage des articles dont le libellé est norovirus testing. Afficher tous les articles
Affichage des articles dont le libellé est norovirus testing. Afficher tous les articles
mardi 31 mai 2011
Risques émergents en agro-alimentaire
Virus (Norovirus, Hepatite A et E, Rotavirus, Adénovirus, Astrovirus...), Bactéries (Campylobacter, Vibrio, Cronobacter, ECEH, E.coli...) des pathogènes émergents qu'il faut surveiller !
vendredi 29 avril 2011
FOOD SAFETY NEWS SCAN: Norovirus in oysters, tainted meat indictment
Oyster norovirus outbreak led to household transmission
A 2009 norovirus outbreak linked to oysters served at a North Carolina restaurant sickened more than 200 people and had a secondary attack rate of 14%, researchers reported today in an early online edition of Epidemiology and Infection. Though the restaurant received oyster shipments from several different growing areas and used them in a variety of menu items, the multiagency investigators linked the illnesses to oysters from a specific Louisiana growing area. The authors said that although the secondary attack rate is consistent with other reports of point-source norovirus outbreaks, the outbreak shows how exposure to a contaminated food vehicle can be widely distributed. They also suggested that the minimum temperature for steaming raw oysters should be higher than the typical 145.4 degrees Fahrenheit for 15 seconds.
Apr 28 Epidemiol Infect abstract
Federal officials indict man who sold tainted meat
US Department of Agriculture (USDA) officials, along with the US District Attorney's office, yesterday announced the indictment of a Puerto Rican man for violations of federal meat and poultry inspection laws. On Apr 6 a grand jury indicted Filiberto Berrios on four counts of adulteration, transport, distribution, and sale of contaminated products. He was arrested on Apr 12. USDA Food Safety and Inspection Service investigators found the violations during routine review operations at cold storage facilities in Puerto Rico. According to the charges, Berrios, a salvage operator, bought 45,582 pounds of spoiled and misbranded meat and poultry on Jun 25, 2009, repackaged it, and then took it to a food warehouse for sale to restaurants, retail stores, and other outlets. After microbiological tests found that the meat was unfit for human consumption, the products were destroyed. Berrios faces jail time or fines if convicted; he is currently free on bail.
Apr 27 USDA press release
A 2009 norovirus outbreak linked to oysters served at a North Carolina restaurant sickened more than 200 people and had a secondary attack rate of 14%, researchers reported today in an early online edition of Epidemiology and Infection. Though the restaurant received oyster shipments from several different growing areas and used them in a variety of menu items, the multiagency investigators linked the illnesses to oysters from a specific Louisiana growing area. The authors said that although the secondary attack rate is consistent with other reports of point-source norovirus outbreaks, the outbreak shows how exposure to a contaminated food vehicle can be widely distributed. They also suggested that the minimum temperature for steaming raw oysters should be higher than the typical 145.4 degrees Fahrenheit for 15 seconds.
Apr 28 Epidemiol Infect abstract
Federal officials indict man who sold tainted meat
US Department of Agriculture (USDA) officials, along with the US District Attorney's office, yesterday announced the indictment of a Puerto Rican man for violations of federal meat and poultry inspection laws. On Apr 6 a grand jury indicted Filiberto Berrios on four counts of adulteration, transport, distribution, and sale of contaminated products. He was arrested on Apr 12. USDA Food Safety and Inspection Service investigators found the violations during routine review operations at cold storage facilities in Puerto Rico. According to the charges, Berrios, a salvage operator, bought 45,582 pounds of spoiled and misbranded meat and poultry on Jun 25, 2009, repackaged it, and then took it to a food warehouse for sale to restaurants, retail stores, and other outlets. After microbiological tests found that the meat was unfit for human consumption, the products were destroyed. Berrios faces jail time or fines if convicted; he is currently free on bail.
Apr 27 USDA press release
Molecular detection of multiple viral targets in untreated urban sewage from Greece
Urban sewage virological analysis may produce important information about the strains that cause clinical and subclinical infections in the population, thus supporting epidemiological studies.Methods In the present study, a twenty one-month survey (November 2007 to July 2009) was conducted in order to evaluate the presence of human adenoviruses (hAdV), hepatitis A viruses (HAV), hepatitis E viruses (HEV), Noroviruses (NoV), and human Polyomaviruses (hPyV) in untreated sewage samples collected from the inlet of Patras'municipal biological wastewater treatment plant, located in southwestern Greece. Nucleic acid amplification techniques were applied for viral nucleic acid detection.
Positive samples were confirmed by sequencing and comparative phylogenetic analysis was performed on the isolated viral strains.Results In total, viruses were detected in 87.5% (42/48) of sewage samples. AdVs, PyVs, HAV, and NoVs were detected in 45.8% (22/48), 68.8% (33/48), 8.3% (4/48), and 6.3% (3/48) of the samples collected from the plant's inlet, while HEV was not detected at all.
Adenovirus types 8 (Ad8), 40 (Ad40) and 41 (Ad41) were recognized, while JC and BK polyomaviruses were recorded. Noroviruses were identified as GII.4.
HAV was typed as genotype IA.
Conclusions Our study demonstrates the advantages of environmental surveillance as a tool to elucidate the molecular epidemiology of community circulating viruses. We underline the need of environmental surveillance programs in countries such as Greece with inadequate and problematic epidemiological surveillance system and no environmental surveillance system currently in action.
Author: Petros KokkinosPanos ZirosAggeliki MpalasopoulouAlex GalanisApostolos Vantarakis
Credits/Source: Virology Journal 2011, 8:195
Positive samples were confirmed by sequencing and comparative phylogenetic analysis was performed on the isolated viral strains.Results In total, viruses were detected in 87.5% (42/48) of sewage samples. AdVs, PyVs, HAV, and NoVs were detected in 45.8% (22/48), 68.8% (33/48), 8.3% (4/48), and 6.3% (3/48) of the samples collected from the plant's inlet, while HEV was not detected at all.
Adenovirus types 8 (Ad8), 40 (Ad40) and 41 (Ad41) were recognized, while JC and BK polyomaviruses were recorded. Noroviruses were identified as GII.4.
HAV was typed as genotype IA.
Conclusions Our study demonstrates the advantages of environmental surveillance as a tool to elucidate the molecular epidemiology of community circulating viruses. We underline the need of environmental surveillance programs in countries such as Greece with inadequate and problematic epidemiological surveillance system and no environmental surveillance system currently in action.
Author: Petros KokkinosPanos ZirosAggeliki MpalasopoulouAlex GalanisApostolos Vantarakis
Credits/Source: Virology Journal 2011, 8:195
mardi 26 avril 2011
NBA Teams Sickened by Contagious Norovirus
EMSL Analytical, Inc. provides environmental testing services to prevent contagious viruses from causing outbreaks in arenas, schools and other public settings.
PRLog (Press Release) – Apr 18, 2011 – Last week it was reported that an outbreak of a stomach virus that impacted 13 NBA teams was caused by the norovirus. Within the 13 teams, 21 players became ill, including some well known stars.
According to the Centers for Disease Control and Prevention (CDC), “Noroviruses (genus Norovirus, family Caliciviridae) are a group of related, single-stranded RNA, non-enveloped viruses that cause acute gastroenteritis in humans. The most common symptoms of acute gastroenteritis are diarrhea, vomiting, and stomach pain. Norovirus is the official genus name for the group of viruses previously described as “Norwalk-like viruses” (NLV). Noroviruses spread from person to person, through contaminated food or water, and by touching contaminated surfaces. Norovirus is recognized as the leading cause of foodborne-disease outbreaks in the United States. Outbreaks can happen to people of all ages and in a variety of settings.” The virus is also capable of being transmitted by air if dried vomit particles becoming airborne.
The virus has made headlines over the last several years due to highly publicized outbreaks on major cruise lines. The CDC reports, “Norovirus illness often begins suddenly and, when infected, you may feel very sick, with stomach cramping, vomiting, or diarrhea. Infections are usually not serious, and most people recover within 1 or 2 days with no long-term health effects. But, more severe illness is possible, particularly in young children, the elderly, and people with other health conditions, and can lead to hospitalization and even death.”
EMSL Analytical, one of the nation’s largest environmental testing laboratories, has PCR testing capabilities for viruses such as norovirus and enterovirus. “Noroviruses are highly contagious and as few as 10 viral particles may be sufficient to infect an individual according to some research,” reported Joe Frasca, Senior Vice President, Marketing at EMSL. “To prevent outbreaks it’s important to test for these viruses and when suspected outbreaks do occur testing will help identify the culprit,” he continued.
PRLog (Press Release) – Apr 18, 2011 – Last week it was reported that an outbreak of a stomach virus that impacted 13 NBA teams was caused by the norovirus. Within the 13 teams, 21 players became ill, including some well known stars.
According to the Centers for Disease Control and Prevention (CDC), “Noroviruses (genus Norovirus, family Caliciviridae) are a group of related, single-stranded RNA, non-enveloped viruses that cause acute gastroenteritis in humans. The most common symptoms of acute gastroenteritis are diarrhea, vomiting, and stomach pain. Norovirus is the official genus name for the group of viruses previously described as “Norwalk-like viruses” (NLV). Noroviruses spread from person to person, through contaminated food or water, and by touching contaminated surfaces. Norovirus is recognized as the leading cause of foodborne-disease outbreaks in the United States. Outbreaks can happen to people of all ages and in a variety of settings.” The virus is also capable of being transmitted by air if dried vomit particles becoming airborne.
The virus has made headlines over the last several years due to highly publicized outbreaks on major cruise lines. The CDC reports, “Norovirus illness often begins suddenly and, when infected, you may feel very sick, with stomach cramping, vomiting, or diarrhea. Infections are usually not serious, and most people recover within 1 or 2 days with no long-term health effects. But, more severe illness is possible, particularly in young children, the elderly, and people with other health conditions, and can lead to hospitalization and even death.”
EMSL Analytical, one of the nation’s largest environmental testing laboratories, has PCR testing capabilities for viruses such as norovirus and enterovirus. “Noroviruses are highly contagious and as few as 10 viral particles may be sufficient to infect an individual according to some research,” reported Joe Frasca, Senior Vice President, Marketing at EMSL. “To prevent outbreaks it’s important to test for these viruses and when suspected outbreaks do occur testing will help identify the culprit,” he continued.
lundi 4 avril 2011
lundi 15 novembre 2010
Where not to go with the Norovirus!
from Dr Kishore
Public health bosses are issuing their annual warning to those unfortunate enough to contract the Winter Vomiting Virus.
A number of cases of Norovirus have been reported so far this year, and Director of Public Health Dr Parameswaran Kishore says it's imperative people don't spread the disease by going to hospital with it.
He says if you have it, stay at home for at least 48 hours, so there is no risk of passing on the highly-contagious disease to others.
Dr Kishore adds that, in such circumstances, it is even more important to stay away from hospitals, GP surgeries and pharmacies:
Listen To Related Audio Clip
Public health bosses are issuing their annual warning to those unfortunate enough to contract the Winter Vomiting Virus.
A number of cases of Norovirus have been reported so far this year, and Director of Public Health Dr Parameswaran Kishore says it's imperative people don't spread the disease by going to hospital with it.
He says if you have it, stay at home for at least 48 hours, so there is no risk of passing on the highly-contagious disease to others.
Dr Kishore adds that, in such circumstances, it is even more important to stay away from hospitals, GP surgeries and pharmacies:
Listen To Related Audio Clip
mardi 9 novembre 2010
Cefas launches shellfish testing service for Norovirus
A commercial shellfish testing service has been unveiled by Cefas' subsidiary, Cefas Technology Ltd. It is aimed at producers and local authorities. Until now, Cefas' shellfish testing has been a service provided to regulatory clients. Now, it is providing “a range of tests for all major, commercially grown bivalve shellfish - for norovirus, E. coli and Salmonella spp - using internationally recognised testing protocols” and delivered by a “team of distinguished international scientists”.
jeudi 6 août 2009
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