| Autor: |
Richard J. Whittington, Ika Paul-Pont, Olivia Evans, Paul Hick, Navneet K. Dhand |
| Jazyk: |
angličtina |
| Rok vydání: |
2018 |
| Předmět: |
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| Zdroj: |
Veterinary Research, Vol 49, Iss 1, Pp 1-21 (2018) |
| Druh dokumentu: |
article |
| ISSN: |
1297-9716 |
| DOI: |
10.1186/s13567-018-0529-7 |
| Popis: |
Abstract 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 ( |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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