Einzeltreffer — DigiBib

Objective: To demonstrate that OsHV-1 microvariant was limited to the known infected areas in New South Wales at the time of the survey in 2011.

Design: A 2-stage survey to demonstrate probability of infection at 2% design prevalence within oyster growing regions and to detect at least one infected region (4% design prevalence) with 95% confidence.

Sample Population: Magallana gigas in nominated oyster growing regions in New South Wales, South Australia and Tasmania as approved by the Aquatic Consultative Committee on Emergency Animal Diseases and documented in a national surveillance plan.

Procedure: Field sampling for active surveillance and laboratory selection of appropriate tissues using methods to minimize potential for cross contamination. Published methods for qPCR and conventional PCR for OsHV-1 microvariant. Stochastic analysis of survey results to demonstrate probability of detection in the areas tested.

Results and Conclusions: OsHV-1 microvariant was not detected in a total 4121 samples according to the case definition developed for the survey. However, in NSW a screening qPCR for OsHV-1 detected 13 samples that reacted. These samples were negative at 2 laboratories in the qPCR and conventional PCR assays used in the case definition for the survey. We concluded that oyster production areas of Australia outside the infected area in NSW met the criteria for self-declaration of freedom at the time of the survey in 2011.

Clinical Relevance: This activity illustrated achievements in surveillance for an emerging emergency animal pathogen where epidemiological and test validation data were limited, but where data was required to inform the emergency disease response. It also illustrated the challenges faced by investigators in interpreting surveillance results using tests with limited validation. It was guided by and has informed improvements in surveillance and emergency disease preparedness.

Titel:	Ostreid herpesvirus-1 microvariant surveillance in Pacific oysters (Magallana gigas, Thunberg, 1793) in Australia in 2011.
Autor/in / Beteiligte Person:	Moloney, BJ ; Deveney, M ; Ellard, K ; Hick, P ; Kirkland, PD ; Moody, N ; Frances, J
Link:	Full Text Finder (Volltext)
Zeitschrift:	Australian veterinary journal, Jg. 101 (2023-09-01), Heft 9, S. 345-355
Veröffentlichung:	Oxford : Wiley-Blackwell Pub. ; <i>Original Publication</i>: New South Wales : Australian Veterinary Association, 2023
Medientyp:	academicJournal
ISSN:	1751-0813 (electronic)
DOI:	10.1111/avj.13265
Schlagwort:	Animals DNA Viruses Australia epidemiology Herpesviridae genetics Crassostrea
Sonstiges:	Nachgewiesen in: MEDLINE Sprachen: English Publication Type: Journal Article Language: English [Aust Vet J] 2023 Sep; Vol. 101 (9), pp. 345-355. <i>Date of Electronic Publication: </i>2023 Jul 08. MeSH Terms: Herpesviridae* / genetics ; Crassostrea* ; Animals ; DNA Viruses ; Australia / epidemiology References: Nell JA. The history of oyster farming in Australia. Mar Fish Rev 2001;63:14-25 Article. ; O'Connor WA, Dove MC. The changing face of oyster culture in New South Wales, Australia. J Shellfish Res 2009;28:803-811. https://doi.org/10.2983/035.028.0409. ; Hine PM, Wesney B, Hay BE. Herpesviruses associated with mortalities among hatchery-reared larval Pacific oysters Crassostrea gigas. Dis Aquat Organ 1992;12:135-142. https://doi.org/10.3354/dao012135. ; Nicolas JL, Comps M, Cochennec N. Herpes-like virus infecting pacific oyster larvae Crassostrea gigas. Bull Eur Assoc Fish Pathol (United Kingdom) 1992;12:11-13 Article. ; Renault T, Cochennec N, Le Deuff RM et al. Herpes-like virus infecting Japanese oyster (Crassostrea gigas) spat. Bull Eur Assoc Fish Pathol (United Kingdom) 1994;14:64-66 Article. ; Burge CA, Griffin FJ, Friedman CS. Mortality and herpesvirus infections of the Pacific oyster Crassostrea gigas in Tomales Bay, California, USA. Dis Aquat Org 2006;72:31-43. https://doi.org/10.3354/dao072031. ; Davison AJ, Trus BL, Cheng N et al. A novel class of herpesvirus with bivalve hosts. J Gen Virol 2005;86:41-53. https://doi.org/10.1099/vir.0.80382-0. ; Segarra A, Pepin JF, Arzul I et al. Detection and description of a particular Ostreid herpesvirus 1 genotype associated with massive mortality outbreaks of Pacific oysters, Crassostrea gigas, in France in 2008. Virus Res 2010;153:92-99. https://doi.org/10.1016/j.virusres.2010.07.011. ; Jenkins C, Hick P, Gabor M et al. Identification and characterisation of an ostreid herpesvirus-1 microvariant (OsHV-1 μ-var) in Crassostrea gigas (Pacific oysters) in Australia. Dis Aquat Organ 2013;105:109-126. https://doi.org/10.1046/j.1365-2761.2001.00300.x. ; Hine PM, Thorne T. Replication of herpes-like viruses in haemocytes of adult flat oysters Ostrea angasi: an ultrastructural study. Dis Aquat Organ 1997;29:189-196. https://doi.org/10.1046/j.1365-2761.2001.00282.x. ; DAWE. AQUAVETPLAN disease strategy: infection with ostreid herpesvirus-1 microvariant. In: Australian aquatic veterinary emergency plan (AQUAVETPLAN). Commonwealth of Australia, Canberra, ACT, Australia, 2015. ; Martenot C, Oden E, Travaillé E et al. Comparison of two real-time PCR methods for detection of ostreid herpesvirus 1 in the Pacific oyster Crassostrea gigas. J Virol Methods 2010;170:86-89. https://doi.org/10.1016/j.jviromet.2010.09.003. ; Sergeant ESG. Epitools epidemiological calculators. http://epitools.ausvet.com.au (2018). ; Arzul I, Renault T, Thébault A et al. Detection of oyster herpesvirus DNA and proteins in asymptomatic Crassostrea gigas adults. Virus Res 2002;84:151-160. https://doi.org/10.1016/s0168-1702(02)00007-2. ; Joseph L, Gyorkos TW, Coupal L. Bayesian estimation of disease prevalence and the parameters of diagnostic test in the absence of a gold standard. Am J Epidemiol 1995;141:263-272. https://doi.org/10.1093/oxfordjournals.aje.a117428. ; Sergeant E. RSurveillance: design and analysis of disease surveillance activities. R Package version 0.2.1 ed. 2020. ; Rampano B, Go J. Importation protocol surveillance on track to demonstrate freedom from Pacific Oyster Mortality Syndrome. New South Wales Animal Health Surv 2020:9-11. ; Trancart S, Tweedie A, Liu OLV et al. Diversity and molecular epidemiology of Ostreid herpesvirus 1 in farmed Crassostrea gigas in Australia: geographic clusters and implications for “microvariants” in global mortality events. Virus Res 2023;323:323. https://doi.org/10.1016/j.virusres.2022.198994. ; Georgiades E, Scianni C, Davidson I et al. The role of vessel biofouling in the translocation of marine pathogens: management considerations and challenges. Front Mar Sci 2021;8:8. https://doi.org/10.3389/fmars.2021.660125. ; Oden E, Martenot C, Berthaux M et al. Quantification of ostreid herpesvirus 1 (OsHV-1) in Crassostrea gigas by real-time PCR: determination of a viral load threshold to prevent summer mortalities. Aquaculture 2011;317:27-31. https://doi.org/10.1016/j.aquaculture.2011.04.001. Grant Information: Department of Agriculture, Australian Government Contributed Indexing: Keywords: Australia; Magallana gigas; national survey; ostreid herpesvirus; surveillance SCR Organism: Ostreid herpesvirus 1 Entry Date(s): Date Created: 20230708 Date Completed: 20230905 Latest Revision: 20230905 Update Code: 20240513

Klicken Sie ein Format an und speichern Sie dann die Daten oder geben Sie eine Empfänger-Adresse ein und lassen Sie sich per Email zusenden.

BibTeX Citavi, JabRef, u.a.
(Literaturverwaltung)

PDF kein Volltext!
(Merkzettel, Notizen)

RIS Endnote, Citavi u.a.
(Literaturverwaltung)

MODS
(XML zur Weiterverarbeitung)

oder

Wählen Sie das für Sie passende Zitationsformat und kopieren Sie es dann in die Zwischenablage, lassen es sich per Mail zusenden oder speichern es als PDF-Datei.

Gewünschter Zitations-Stil:

oder

Bitte prüfen Sie, ob die Zitation formal korrekt ist, bevor Sie sie in einer Arbeit verwenden. Benutzen Sie gegebenenfalls den "Exportieren"-Dialog, wenn Sie ein Literaturverwaltungsprogramm verwenden und die Zitat-Angaben selbst formatieren wollen.

Ostreid herpesvirus-1 microvariant surveillance in Pacific oysters (Magallana gigas, Thunberg, 1793) in Australia in 2011.