Isolation and characterisation of cervine herpesvirus-1 from red deer semen |
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| Authors: | Tisdall D J Rowe S M |
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| Institution: | National Centre for Disease Investigation, PO Box 40-742, Upper Hutt, New Zealand. D.Tisdall@massey.ac.nz |
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| Abstract: | AIM: This communication describes the isolation of herpesvirus during routine export examination of semen collected from red deer stags in New Zealand. METHODS: Virus isolation was carried out using bovine embryonic lung (BEL) cells and viruses were characterised by direct immunofluorescense, restriction-fragment-length polymorphism analysis (RFLP), polymerase chain reaction (PCR) analysis and nucleotide sequencing. RESULTS: Herpesvirus was isolated from red deer semen on 2 different occasions from different animals. In both cases the virus was identified as cervine herpesvirus-1 (CvHV-1), based on RFLP, PCR and sequence analysis. Nucleotide sequence analysis of the glycoprotein-D gene showed 99.7% homology to the Banffshire strain of CvHV-1 and 89.5%, 89.2%, 85.3% and 79.6% homology to bovine herpesvirus 1.2 (BoHV-1.2), bovine herpesvirus 1.1 (BoHV-1.1), cervine herpesvirus-2 (CvHV-2) and caprine herpesvirus-1 (CpHV-1), respectively. CONCLUSION: This is the first time that CvHV-1 has been isolated in New Zealand. Its inclusion in serological surveys will allow the prevalence of CvHV-1 in the red deer population to be assessed in this country. The clinical significance of CvHV1 infection in New Zealand red deer herds has yet to be determined. |
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