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| NoV is highly infectious, and there is no threshold infectivity limit for NoV detected by PCR. The probability of becoming infected increases with the dose but depends also on the characteristics of the organism, the food matrix and the host factors. The relationship between the number of infectious virus particles and the number of virus genome copies detected by quantitative PCR is not a constant, and it is important to realise that the infectious risk associated with low level positive oysters as determined by real-time PCR may be overestimated. Quantitative data on viral load from areas compliant with current EU legislative requirements (E. coli standards) during January-March 2010 in 3 selected member states, show that a viral limit of 100, 200, 500,... |
| Tipo: Text |
Palavras-chave: Norovirus; Oysters; Diagnostic methods; Microbiological criteria; Treatment; Control. |
| Ano: 2012 |
URL: http://archimer.ifremer.fr/doc/00066/17735/15256.pdf |
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| Seibert,Caroline H.; Pinto,Aguinaldo R.. |
| Shrimp aquaculture has been dramatically affected by many pathogenic diseases, mainly caused by five viruses: IHHNV, YHV, TSV, WSSV, and IMNV. Here we provide a state-of-the-art overview of these shrimp viruses, with emphasis on distribution, pathology, morphology, and genomic organization, in addition to current diagnostic methods and intervention practices. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Shrimp aquaculture; Viruses; Diagnostic methods; Disease control. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822012000300002 |
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| Camps,Rocío; Castro,Mónica; Besoain,Ximena. |
| R. Camps, M. Castro, and X. Besoain. 2014. Simultaneous detection of CTV, CEVd and HSVd using Arizona 861 S1 Citron and RT-PCR. Cien. Inv. Agr. 41(2): 255-261. Citrus tristeza virus (CTV), Citrus exocortis viroid (CEVd) and Hop stunt viroid (HSVd) are pathogens that affect citrus trees in Chile. The simultaneous use of a rapid diagnostic method with the effective cleaning of infected budwood is a powerful preventative method for controlling viral diseases. The objective of this study was the multiple detection of CTV, CEVd, and HSVd, through bio-amplification in Arizona 861-S1 citron plants, combined with two incubation temperatures and multiple RT-PCR in two steps. Citron indicator plants were inoculated with the three pathogens, both individually and... |
| Tipo: Journal article |
Palavras-chave: CEVd; Citrus; CTV; Diagnostic methods; HSVd; Rapid detection. |
| Ano: 2014 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202014000200012 |
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