Vesely, T., Cinkova, K., Reschova, S., Gobbo, F., Ariel, E., Vicenova, M., Pokorova, D., Kulich, P., and Bovo, G. (2011) Investigation of ornamental fish entering the EU for the presence of ranaviruses. Journal of Fish Diseases, 34 (2). pp. 159-166.

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Abstract

A survey was performed on ornamental fish imported into the EU to detect viral agents belonging to the genus Ranavirus. The objective was to gain knowledge of the potential for these systemic iridoviruses to gain entry into the EU via international trade in ornamental fish. A total of 208 pooled samples, representing 753 individual fish, were tested. The samples included 13 orders and 37 families, originating from different countries and continents. Tissues from fish that died during or just after transport were collected and examined by standard virological techniques in epithelioma papulosum cyprini cells, by transmission electron microscopy and by PCR for the detection of the major capsid protein and DNA polymerase gene sequences of ranaviruses. Virus was isolated from nine fish species but ranavirus was not identified in those samples. The results suggest that ranaviruses are not highly prevalent in ornamental fish imported into the EU.

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