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Diseases of Aquatic Organisms

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DAO 90:167-174 (2010)  -  DOI:

Susceptibility of black bullhead Ameiurus melas to a panel of ranavirus isolates

F. Gobbo, E. Cappellozza, M. R. Pastore, G. Bovo*

Istituto Zooprofilattico Sperimentale delle Venezie, Viale dell’Università, 10-35020 Legnaro, Padova, Italy
*Corresponding author. Email:

ABSTRACT: Ranaviruses are considered a serious threat to lower vertebrates, including fish, amphibians and reptiles. However, epidemiological data on these agents are lacking, and further investigations are needed to understand the role of carriers and to update the list of susceptible hosts. We carried out various experimental infections under controlled conditions to contribute to the current knowledge on the susceptibility of black bullhead Ameiurus melas to European catfish virus (ECV) and other ranaviruses. A panel of 7 ranavirus isolates was used to challenge duplicate groups of A. melas juveniles maintained in aquaria supplied with running dechlorinated tap water. The experiments were performed at 15 and 25°C. The results confirmed the high susceptibility of A. melas to ECV infection. Furthermore, a significant mortality associated with the typical signs of systemic viral infections was observed in groups challenged with Epizootic haematopoietic necrosis virus (EHNV) at 25°C, and to a lesser extent, at 15°C. No significant mortality was recorded in fish challenged with European sheatfish virus (ESV), Frog virus 3 (FV3), Rana esculenta virus-like (REV-like), Bohle iridovirus (BIV) or short-finned eel virus (SERV).

KEY WORDS: Ranavirus · Black bullhead · Epizootic haematopoietic necrosis virus · European catfish virus · European sheatfish virus

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Cite this article as: Gobbo F, Cappellozza E, Pastore MR, Bovo G (2010) Susceptibility of black bullhead Ameiurus melas to a panel of ranavirus isolates. Dis Aquat Org 90:167-174.

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