Igor S Shchelkunov

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A virus was isolated from Siberian sturgeon Acipenser baeri and bester (beluga Huso huso x sterlet A. ruthenus hybrid) fingerlings in SSO-2, SSF-2 and WSSK-1 cell lines during an acute epizootic on a large fish farm producing fertilised sturgeon eggs and fry. Transmission electron microscopic examination of samples from both inoculated cell cultures and(More)
Partial genome sequence of a herpes-like virus, isolated from Siberian sturgeon (Acipenser baeri), was determined and subjected to phylogenetic analysis. The virus (SbSHV) has been shown to be the causative agent of an acute disease with high mortality in farmed juvenile sturgeons in Russia. Two fragments (of 7000 and 300 base pairs in length) encompassing(More)
Genetic relationships between 35 spring viremia of carp virus (SVCV) genogroup Ia isolates were determined based on the nucleotide sequences of the phosphoprotein (P) gene and glycoprotein (G) genes. Phylogenetic analysis based on P gene sequences revealed 2 distinct subgroups within SVCV genogroup Ia, designated SVCV Iai and Iaii, and suggests at least 2(More)
A virus belonging to Rhabdovirus anguilla was isolated from elvers imported from the FRG. It was established that a reduction of the multiplicity of infection to less than or equal to 0.005 increased more than 100-fold the yield of infection in ASE cell culture. The pathogenicity of this virus for eel has first been demonstrated. Experimentally, at 10.5(More)
Papillomatosis of Atlantic salmon Salmo salar has been reported for decades in Russia, Scandinavia and Scotland. The disease is typically benign although heavy losses have occasionally been reported. A herpesviral etiology has been suggested based on ultrastructural evidence; however, the virus has not been isolated or genetically characterized. In this(More)
For detection of spring viremia of carp virus (SVCV) DNA probes have been constructed using the reverse transcription-polymerase chain reaction (RT-PCR) amplification technique and cDNA cloning in plasmid and phage vectors. The specific primers for amplification of SVCV M and G genes were chosen and synthesized. Studies were carried out to establish the(More)
In order to detect spring viraemia of carp virus, DNA probes have been constructed using reverse transcription-PCR amplification technique and cDNA cloning in plasmid and phage vectors. The sensitivity and specificity of viral RNA detection was assessed using nonradioactive probes in infected FHM cell culture and in tissues from dead fish. Viral RNA was(More)
Siberian sturgeon herpesvirus (SbSHV) was isolated in Russia for the first time in 2006. Nine SbSHV isolates were recovered from different fish hatcheries producing the same cytopathic effect in cell cultures, the same clinical signs and mortality kinetics in virus-infected fish and the same virus neutralization pattern and shared identical nucleotide(More)
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