Counting the dead to determine the source and transmission of the marine herpesvirus OsHV-1 in Crassostrea gigas
International audience Marine herpesviruses are responsible for epizootics in economically, ecologically and culturally significant taxa. The recent emergence of microvariants of Ostreid herpesvirus 1 (OsHV-1) in Pacific oysters Crassostrea gigas has resulted in socioeconomic losses in Europe, New Z...
Published in: | Veterinary Research |
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Format: | Article in Journal/Newspaper |
Language: | English |
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2018
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ftinserm:oai:HAL:hal-02373679v1 2023-05-15T15:58:18+02:00 Counting the dead to determine the source and transmission of the marine herpesvirus OsHV-1 in Crassostrea gigas Whittington, Richard Paul-Pont, Ika Evans, Olivia Hick, Paul Dhand, Navneet The University of Sydney Laboratoire des Sciences de l'Environnement Marin (LEMAR) (LEMAR) Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Université de Brest (UBO)-Institut Universitaire Européen de la Mer (IUEM) Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS) 2018-04-10 https://hal.archives-ouvertes.fr/hal-02373679 https://hal.archives-ouvertes.fr/hal-02373679/document https://hal.archives-ouvertes.fr/hal-02373679/file/Whittington_etal_VR_2018.pdf https://doi.org/10.1186/s13567-018-0529-7 en eng HAL CCSD BioMed Central info:eu-repo/semantics/altIdentifier/doi/10.1186/s13567-018-0529-7 hal-02373679 https://hal.archives-ouvertes.fr/hal-02373679 https://hal.archives-ouvertes.fr/hal-02373679/document https://hal.archives-ouvertes.fr/hal-02373679/file/Whittington_etal_VR_2018.pdf doi:10.1186/s13567-018-0529-7 info:eu-repo/semantics/OpenAccess ISSN: 0928-4249 EISSN: 1297-9716 Veterinary Research https://hal.archives-ouvertes.fr/hal-02373679 Veterinary Research, BioMed Central, 2018, 49, pp.34. ⟨10.1186/s13567-018-0529-7⟩ DISEASE-INDUCED MORTALITY FARMED PACIFIC OYSTERS OSTREID HERPESVIRUS-1 MU-VAR RISK-FACTORS PATHOGEN TRANSMISSION HUSBANDRY PRACTICES WATER TEMPERATURE RIVER ESTUARY ACL [SDV.SPEE]Life Sciences [q-bio]/Santé publique et épidémiologie [SDE.BE]Environmental Sciences/Biodiversity and Ecology info:eu-repo/semantics/article Journal articles 2018 ftinserm https://doi.org/10.1186/s13567-018-0529-7 2022-06-23T23:11:57Z International audience Marine herpesviruses are responsible for epizootics in economically, ecologically and culturally significant taxa. The recent emergence of microvariants of Ostreid herpesvirus 1 (OsHV-1) in Pacific oysters Crassostrea gigas has resulted in socioeconomic losses in Europe, New Zealand and Australia however, there is no information on their origin or mode of transmission. These factors need to be understood because they influence the way the disease may be prevented and controlled. Mortality data obtained from experimental populations of C. gigas during natural epizootics of OsHV-1 disease in Australia were analysed qualitatively. In addition we compared actual mortality data with those from a Reed-Frost model of direct transmission and analysed incubation periods using Sartwell's method to test for the type of epizootic, point source or propagating. We concluded that outbreaks were initiated from an unknown environmental source which is unlikely to be farmed oysters in the same estuary. While direct oyster-to-oyster transmission may occur in larger oysters if they are in close proximity (< 40 cm), it did not explain the observed epizootics, point source exposure and indirect transmission being more common and important. A conceptual model is proposed for OsHV-1 index case source and transmission, leading to endemicity with recurrent seasonal outbreaks. The findings suggest that prevention and control of OsHV-1 in C. gigas will require multiple interventions. OsHV-1 in C. gigas, which is a sedentary animal once beyond the larval stage, is an informative model when considering marine host-herpesvirus relationships. Article in Journal/Newspaper Crassostrea gigas Inserm: HAL (Institut national de la santé et de la recherche médicale) Pacific New Zealand Veterinary Research 49 1 |
institution |
Open Polar |
collection |
Inserm: HAL (Institut national de la santé et de la recherche médicale) |
op_collection_id |
ftinserm |
language |
English |
topic |
DISEASE-INDUCED MORTALITY FARMED PACIFIC OYSTERS OSTREID HERPESVIRUS-1 MU-VAR RISK-FACTORS PATHOGEN TRANSMISSION HUSBANDRY PRACTICES WATER TEMPERATURE RIVER ESTUARY ACL [SDV.SPEE]Life Sciences [q-bio]/Santé publique et épidémiologie [SDE.BE]Environmental Sciences/Biodiversity and Ecology |
spellingShingle |
DISEASE-INDUCED MORTALITY FARMED PACIFIC OYSTERS OSTREID HERPESVIRUS-1 MU-VAR RISK-FACTORS PATHOGEN TRANSMISSION HUSBANDRY PRACTICES WATER TEMPERATURE RIVER ESTUARY ACL [SDV.SPEE]Life Sciences [q-bio]/Santé publique et épidémiologie [SDE.BE]Environmental Sciences/Biodiversity and Ecology Whittington, Richard Paul-Pont, Ika Evans, Olivia Hick, Paul Dhand, Navneet Counting the dead to determine the source and transmission of the marine herpesvirus OsHV-1 in Crassostrea gigas |
topic_facet |
DISEASE-INDUCED MORTALITY FARMED PACIFIC OYSTERS OSTREID HERPESVIRUS-1 MU-VAR RISK-FACTORS PATHOGEN TRANSMISSION HUSBANDRY PRACTICES WATER TEMPERATURE RIVER ESTUARY ACL [SDV.SPEE]Life Sciences [q-bio]/Santé publique et épidémiologie [SDE.BE]Environmental Sciences/Biodiversity and Ecology |
description |
International audience Marine herpesviruses are responsible for epizootics in economically, ecologically and culturally significant taxa. The recent emergence of microvariants of Ostreid herpesvirus 1 (OsHV-1) in Pacific oysters Crassostrea gigas has resulted in socioeconomic losses in Europe, New Zealand and Australia however, there is no information on their origin or mode of transmission. These factors need to be understood because they influence the way the disease may be prevented and controlled. Mortality data obtained from experimental populations of C. gigas during natural epizootics of OsHV-1 disease in Australia were analysed qualitatively. In addition we compared actual mortality data with those from a Reed-Frost model of direct transmission and analysed incubation periods using Sartwell's method to test for the type of epizootic, point source or propagating. We concluded that outbreaks were initiated from an unknown environmental source which is unlikely to be farmed oysters in the same estuary. While direct oyster-to-oyster transmission may occur in larger oysters if they are in close proximity (< 40 cm), it did not explain the observed epizootics, point source exposure and indirect transmission being more common and important. A conceptual model is proposed for OsHV-1 index case source and transmission, leading to endemicity with recurrent seasonal outbreaks. The findings suggest that prevention and control of OsHV-1 in C. gigas will require multiple interventions. OsHV-1 in C. gigas, which is a sedentary animal once beyond the larval stage, is an informative model when considering marine host-herpesvirus relationships. |
author2 |
The University of Sydney Laboratoire des Sciences de l'Environnement Marin (LEMAR) (LEMAR) Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Université de Brest (UBO)-Institut Universitaire Européen de la Mer (IUEM) Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Whittington, Richard Paul-Pont, Ika Evans, Olivia Hick, Paul Dhand, Navneet |
author_facet |
Whittington, Richard Paul-Pont, Ika Evans, Olivia Hick, Paul Dhand, Navneet |
author_sort |
Whittington, Richard |
title |
Counting the dead to determine the source and transmission of the marine herpesvirus OsHV-1 in Crassostrea gigas |
title_short |
Counting the dead to determine the source and transmission of the marine herpesvirus OsHV-1 in Crassostrea gigas |
title_full |
Counting the dead to determine the source and transmission of the marine herpesvirus OsHV-1 in Crassostrea gigas |
title_fullStr |
Counting the dead to determine the source and transmission of the marine herpesvirus OsHV-1 in Crassostrea gigas |
title_full_unstemmed |
Counting the dead to determine the source and transmission of the marine herpesvirus OsHV-1 in Crassostrea gigas |
title_sort |
counting the dead to determine the source and transmission of the marine herpesvirus oshv-1 in crassostrea gigas |
publisher |
HAL CCSD |
publishDate |
2018 |
url |
https://hal.archives-ouvertes.fr/hal-02373679 https://hal.archives-ouvertes.fr/hal-02373679/document https://hal.archives-ouvertes.fr/hal-02373679/file/Whittington_etal_VR_2018.pdf https://doi.org/10.1186/s13567-018-0529-7 |
geographic |
Pacific New Zealand |
geographic_facet |
Pacific New Zealand |
genre |
Crassostrea gigas |
genre_facet |
Crassostrea gigas |
op_source |
ISSN: 0928-4249 EISSN: 1297-9716 Veterinary Research https://hal.archives-ouvertes.fr/hal-02373679 Veterinary Research, BioMed Central, 2018, 49, pp.34. ⟨10.1186/s13567-018-0529-7⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1186/s13567-018-0529-7 hal-02373679 https://hal.archives-ouvertes.fr/hal-02373679 https://hal.archives-ouvertes.fr/hal-02373679/document https://hal.archives-ouvertes.fr/hal-02373679/file/Whittington_etal_VR_2018.pdf doi:10.1186/s13567-018-0529-7 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1186/s13567-018-0529-7 |
container_title |
Veterinary Research |
container_volume |
49 |
container_issue |
1 |
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1766394026652598272 |