Molecular diagnosis of infectious hematopoietic necrosis and viral hemorrhagic septicemia

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Abstract

The fish rhabdoviruses, infectious hematopoietic necrosis virus (IHNV) and viral hemorrhagic septicemia virus (VHSV), cause extensive losses among salmon and trout in several areas of the world (Bootland and Leong, 1999; Smail, 1999; Wolf, 1988). Historically, IHNV was endemic among wild anadromous salmonids in the western portion of North America, but the virus has spread to stocks of cultured rainbow trout (Oncorhynchus mykiss) in the United States, Asia and Western Europe, probably as a result of the movement of infected fish or eggs (Winton, 1991). Prior to 1989, VHSV was thought to be largely restricted to freshwater fishes in Western Europe (Wolf, 1988); however, in the last decade, VHSV has been isolated from an increasing number of free-living marine fish species in the North Pacific and North Atlantic Oceans (Dixon et al., 1997; Dixon, 1999; Kent et al., 1998; Meyers and Winton, 1995; Meyers et al., 1999; Mortensen et al., 1999; Smail; 2000, Takano et al., 2000). These findings have lead to the conclusion that both viruses are principally endemic among marine or anadromous fish species, but have established themselves in freshwater among cultured salmonids where their effects are most frequently observed.

Additional publication details

Publication type Book chapter
Publication Subtype Book Chapter
Title Molecular diagnosis of infectious hematopoietic necrosis and viral hemorrhagic septicemia
DOI 10.1007/978-94-017-2315-2_3
Year Published 2002
Language English
Publisher Springer Netherlands
Contributing office(s) Western Fisheries Research Center
Description 31 p.
Larger Work Type Book
Larger Work Subtype Monograph
Larger Work Title Molecular diagnosis of salmonid diseases
First page 49
Last page 79