Transmission of Cyprinid herpesvirus-3 (CyHV-3) from goldfish to naïve common carp by cohabitation |
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Authors: | Mansour El-Matbouli Hatem Soliman |
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Institution: | a Fish Medicine and Livestock Management, University of Veterinary Medicine, Veterinaerplatz 1, A-1210 Vienna, Austria |
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Abstract: | Cyprinid herpesvirus-3 (CyHV-3) has spread worldwide and has had a major impact on koi and common carp production. Previous studies on the host range of the CyHV-3 found that fish species other than koi and common carp are fully resistant to natural virus exposure. Recently, CyHV-3 was detected in goldfish (Carassius auratus auratus) that were in contact with CyHV-3 infected koi. In the present study, a specific RT-PCR product was amplified from the viral thymidine kinase gene in gills, intestine and brain tissues of CyHV-3 infected goldfish. This implied that CyHV-3 replicated in these goldfish. Also, in the presence of a stress factor such as temperature fluctuation, the CyHV-3 infected goldfish transmitted the virus to cohabitated naïve SPF common carp. CyHV-3 DNA was detected in the cohabitated naïve carp tissues by PCR. The results of this study demonstrate that goldfish is a carrier for CyHV-3, permit virus propagation, and disseminate the virus to susceptible carp causing the disease. |
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Keywords: | CyHV-3 Goldfish Common carp Carrier Cohabitation PCR |
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