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Viruses 2012, 4(1), 140-166; doi:10.3390/v4010140

Immunity to Fish Rhabdoviruses

Western Fisheries Research Center, United States Geological Survey, 6505 NE 65th St., Seattle, WA 98115, USA
Department of Medicine, University of Washington, 1100 Fairview Ave. N., Seattle, WA 98109, USA
Author to whom correspondence should be addressed.
Received: 1 December 2011 / Revised: 21 December 2011 / Accepted: 10 January 2012 / Published: 18 January 2012
(This article belongs to the Special Issue Viruses Infecting Fish, Amphibians, and Reptiles)
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Members of the family Rhabdoviridae are single-stranded RNA viruses and globally important pathogens of wild and cultured fish and thus relatively well studied in their respective hosts or other model systems. Here, we review the protective immune mechanisms that fish mount in response to rhabdovirus infections. Teleost fish possess the principal components of innate and adaptive immunity found in other vertebrates. Neutralizing antibodies are critical for long-term protection from fish rhabdoviruses, but several studies also indicate a role for cell-mediated immunity. Survival of acute rhabdoviral infection is also dependent on innate immunity, particularly the interferon (IFN) system that is rapidly induced in response to infection. Paradoxically, rhabdoviruses are sensitive to the effects of IFN but virulent rhabdoviruses can continue to replicate owing to the abilities of the matrix (M) protein to mediate host-cell shutoff and the non‑virion (NV) protein to subvert programmed cell death and suppress functional IFN. While many basic features of the fish immune response to rhabdovirus infections are becoming better understood, much less is known about how factors in the environment affect the ecology of rhabdovirus infections in natural populations of aquatic animals. View Full-Text
Keywords: novirhabdovirus; interferon; cell-mediated immunity; neutralizing antibody; immune evasion; non-virion; apoptosis; persistent infections; host-cell shutoff novirhabdovirus; interferon; cell-mediated immunity; neutralizing antibody; immune evasion; non-virion; apoptosis; persistent infections; host-cell shutoff

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This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Purcell, M.K.; Laing, K.J.; Winton, J.R. Immunity to Fish Rhabdoviruses. Viruses 2012, 4, 140-166.

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