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| Bosch, Albert; Sanchez, Gloria; Abbaszadegan, Morteza; Carducci, Annalaura; Guix, Susana; Le Guyader, Soizick; Netshikweta, Rembuluwani; Pinto, Rosa M.; Van Der Poel, Wim H. M.; Rutjes, Saskia; Sano, Daisuke; Taylor, Maureen B.; Van Zyl, Walda B.; Rodriguez-lazaro, David; Kovac, Katarina; Sellwood, Jane. |
| Potential ways to address the issues that relate to the techniques for analyzing food and environmental samples for the presence of enteric viruses are discussed. It is not the authors' remit to produce or recommend standard or reference methods but to address specific issues in the analytical procedures. Foods of primary importance are bivalve molluscs, particularly, oysters, clams, and mussels; salad crops such as lettuce, green onions and other greens; and soft fruits such as raspberries and strawberries. All types of water, not only drinking water but also recreational water (fresh, marine, and swimming pool), river water (irrigation water), raw and treated sewage are potential vehicles for virus transmission. Well over 100 different enteric viruses... |
| Tipo: Text |
Palavras-chave: Enteric viruses; Gastroenteritis; Hepatitis; Detection; Concentration. |
| Ano: 2011 |
URL: http://archimer.ifremer.fr/doc/00031/14191/11465.pdf |
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| Luz Vilarino, M.; Le Guyader, Soizick; Polo, David; Schaeffer, Julien; Krol, Joanna; Romalde, Jesus L.. |
| Standard and real-time reverse transcription-PCR (rRT-PCR) procedures were used to monitor cultured and wild bivalve molluscs from the Ria de Vigo (NW Spain) for the main human enteric RNA viruses, specifically, norovirus (NoV), hepatitis A virus (HAV), astrovirus (AsV), rotavirus (RT), enterovirus (EV), and Aichi virus (AiV). The results showed the presence of at least one enteric virus in 63.4% of the 41 samples analyzed. NoV GII was the most prevalent virus, detected in 53.7% of the samples, while NoV GI, AsV, EV, and RV were found at lower percentages (7.3, 12.2, 12.2, and 4.9%, respectively). In general, samples obtained in the wild were more frequently contaminated than those from Cultured (70.6 vs. 58.3%) molluscs and were more readily contaminated... |
| Tipo: Text |
Palavras-chave: Seafood industry; Viral quantification; Viral prevalence; Norovirus; Hepatitis A virus; Enteric viruses; Molluscs. |
| Ano: 2009 |
URL: http://archimer.ifremer.fr/doc/2009/publication-6957.pdf |
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| Gantzer, Christophe; Dubois, Éric; Crance, Jean-marc; Billaudel, Sylviane; Kopecka, Helena; Schwartzbrod, Louis; Pommepuy, Monique; Le Guyader, Françoise. |
| To improve the knowledge of the survival of enteric viruses in a marine environment, the influence of physico-chemical parameters (temperature, UV, salinity) on the survival of infectious poliovirus 1 and hepatitis A Virus (HAV) in seawater was first studied, the influence of suspended solids (SS) on poliovirus adsorption and survival in seawater was then evaluated and the detection of rotavirus genome in environmental samples (shellfish, river water, treated wastewater) was finally investigated. The results show that temperature has a major impact on virus survival in seawater as the time necessary to inactivate 90 % of the virus (T-90) is 671 days at 4 degrees C and only 25 days at 25 degrees C. Ultraviolet light (42 mW s cm(-2)) rapidly inactivates... |
| Tipo: Text |
Palavras-chave: Environmental factors; Survival; Seawater; Enteric viruses; Facteurs environnementaux; Survie; Eau de mer; Virus entériques. |
| Ano: 1998 |
URL: http://archimer.ifremer.fr/doc/1998/publication-846.pdf |
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| Villarreal,LYB; Uliana,G; Valenzuela,C; Chacón,JLV; Saidenberg,ABS; Sanches,AA; Brandão,PE; Jerez,JA; Ferreira,AJP. |
| Rotaviruses have been identified as one of the main etiological agents of diarrhea and enteritis in mammals, including humans, and in avian species. Few studies have been published about enteric viruses in Brazilian poultry, including those related to rotavirus infection. Such studies demonstrate significant occurrence and the importance of enteric viruses in poultry presenting intestinal problems. Enteric viruses are the primary cause of injuries to the gut, allowing other agents, especially bacteria, to attach, to penetrate, and to replicate in the enteric tissue, leading to further damage. The aim of the present study was to detect rotavirus in the intestinal contents of layers and broilers by polyacrylamide gel electrophoresis (PAGE) and virus... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Enteric viruses; Rotavirus; Isolation; MA104 cells; Chicken. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2006000300009 |
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