Recent developments in the study and surveillance of koi herpesvirus (KHV) in Asia
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Koi herpesvirus infection causes significant mortalities in common carp (Cyprinus carpio carpio), koi carp (Cyprinus carpio koi) and ghost carp (common x koi cross, Cyprinus carpio koi). Outbreaks have been reported in many countries worldwide i.e. UK, Germany, Israel, USA, Belgium, South Africa, Switzerland, The Netherlands, France, Denmark, Austria, Italy, Luxemburg and Poland. The first outbreaks attributed to KHV in Asian countries were reported from Hong Kong in 2001; Indonesia in 2002; Taiwan in 2002; Japan in 2003; Thailand in 2005; and Singapore in 2005. Thereafter, research studies embarked on KHV focused on pathogenicity, cell line susceptibility, fish size susceptibility, predilection to fish organs, persistence in fish, vaccine development and application, surveillance and gene sequence analyses of KHV strains. To date, annual active surveillance of the virus in Cambodia, Lao PDR, Myanmar, the Philippines and Vietnam showed that these countries were free of KHV from 2004 to 2007. Several strains of KHV apparently affect koi and common carp in this region indicating that transboundary movement of the virus has occurred not only in Asia but also from Europe and the Americas. The extensive international trade in live ornamental koi fish has largely contributed to the global spread of KHV. Hence, KHV disease (KHVD) was recently added to the list of notifiable diseases of the World Organisation of Animal Health or the Office International des Epizooties (OIE), an indication of the global significance of this viral infection.
Lio-Po, G. D. (2011). Recent developments in the study and surveillance of koi herpesvirus (KHV) in Asia. In M. G. Bondad-Reantaso, J. B. Jones, F. Corsin, & T. Aoki (Eds.), Diseases in Asian Aquaculture VII (pp. 13-28). Selangor, Malaysia: Fish Health Section, Asian Fisheries Society.
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Nagasawa, Kazuya (Secretariat, Southeast Asian Fisheries Development Center, 2004)Koi herpesvirus (KHV) is a new pathogen in Southeast Asia, where its infection was first detected in common and koi carps (Cyprinus carpio) from Indonesia in March 2002. Since then, in Indonesia there have been numerous ...
Nagasawa, Kazuya (Fisheries Research Agency, 2005)The Southeast Asian Fisheries Development Center (SEAFDEC) is a regional treaty organization with 11 member countries. This was established in 1967 to promote fisheries development in Southeast Asia. As one of four SEAFDEC ...
Somga, J. R.; de la Peña, Leobert D.; Sombito, C. D.; Paner, Milagros G.; Suarnaba, Vonnie S.; Capulos, Geimbo C.; Santa Maria, P. I.; Po, G. L. (European Association of Fish Pathologists, 2010)Illegally imported koi carp were confiscated at the Ninoy Aquino International Airport (NAIA), Manila, Philippines by the Fisheries Quarantine and Inspection Service Officers of the Bureau of Fisheries and Aquatic Resources ...