Ictalurid Herpesvirus 1

Authored by: Larry Hanson

Molecular Detection of Animal Viral Pathogens

Print publication date:  August  2016
Online publication date:  May  2016

Print ISBN: 9781498700368
eBook ISBN: 9781498700375
Adobe ISBN:


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Ictalurid herpesvirus 1 (IcHV1), commonly known as channel catfish virus, is the first identified and characterized herpesvirus of fish [1]. This virus causes channel catfish virus disease (CCVD), a severe hemorrhagic viremia in young channel catfish (Ictalurus punctatus). Given that losses to CCVD can exceed 90% of the affected population within a 2-week period, this disease is of concern to aquaculturists that produce channel catfish. This virus is easily identified in acutely infected individuals, but latent IcHV1 infections can be difficult to detect. A related alloherpesvirus designated Ictalurid herpesvirus 2 (IcHV2) has been detected in Italy from another North American freshwater catfish, the black bullhead (Ameiurus melas) experiencing hemorrhagic vire-mia similar to CCVD [2]. The distinction between the two virus species is important in diagnostic evaluation because the channel catfish may be extremely sensitive to IcHV2 [3] and it is not known to occur in North America where the largest stocks of wild and aquacultured channel catfish occur.

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