Viral haemorrhagic septicaemia virus (VHSV) genotype II isolated from European river lamprey Lampetra fluviatilis in Finland during surveillance from 1999 to 2008

Lampreys: Biology, Conservation and Control

“…8.2.1), many of the studies examining parasites and other pathogens in lampreys have largely focused on their impact on human health and their potential role in the transmission of diseases to commercially-important fishes (e.g., Eissa et al 2006;Faisal et al 2007;Gadd et al 2010;Bao et al 2013). As with studies on contaminant levels in lampreys (see Sect.…”

“…As with studies on contaminant levels in lampreys (see Sect. More recently, Renibacterium salmoninarum, the causative agent of bacterial kidney disease in salmonids, has been found in lampreys (Eissa et al 2006), as well as the virus causing viral hemorrhagic septicemia (VHS; Gadd et al 2010). Appy and Anderson (1981) listed 70 distinct parasite species that have been found in larval and adult lampreys.…”

Viral haemorrhagic septicaemia virus (VHSV Id) infections are detected more consistently using syndromic vs. active surveillance

“…The number of samples in each programme is given in parentheses 2000−2004(Raja-Halli et al 2006. The nucleotide (nt) identity between these isolates was 99.7−99.9%, whereas the nt identity between Finnish lamprey and herring VHSV isolates belonging to genotype II (Gadd et al 2010(Gadd et al , 2011 and isolates from this study was only approximately 89% (Table S1 in the Supplement). The G gene sequence identity between VHSV isolates from this study and VHSV isolates belonging to genotypes III and IV was approximately 91 and 86%, respectively.…”

“…Initial phylogenetic reports of the Finnish farm isolates hypothesized that wild fish populations were the source of the primary infection (Raja-Halli et al 2006). Nevertheless, surveillance efforts that screened wild herring, sprat, salmonid brood fish and lampreys Lampetra fluviatilis for VHSV between 2004 and 2006 on the west coast of Finland in the Baltic Sea, remained negative for VHSV Id (Gadd et al 2010(Gadd et al , 2011. Furthermore, subsequent screening of wild fish in the vicinity of the study farms reported on herein also suggested a lack of VHSV in wild fish (P. Vennerstöm unpubl.…”

“…Viral haemorrhagic septicaemia (VHS) is a fish disease that has been described in more than 80 fish species in both fresh and marine waters (review by Skall et al 2005a, Elsayed et al 2006, Lumsden et al 2007, Dale et al 2009, Bain et al 2010, Gadd et al 2010, Kim & Faisal 2010, Emmenegger et al 2013, Ito & Olesen 2013). The disease is caused by VHS virus (VHSV), a virus belonging to the genus Novirhabdovirus of the family Rhabdoviridae (Walker et al 2000).…”