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Curr Opin Virol. 2011 Jul;1(1):73-80. doi: 10.1016/j.coviro.2011.05.010. Epub 2011 Jun 17.

Complex dynamics at the interface between wild and domestic viruses of finfish.

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  • 1USGS Western Fisheries Research Center, Seattle, WA 98115, USA.


Viral traffic occurs readily between wild and domesticated stocks of finfish because aquatic environments have greater connectivity than their terrestrial counterparts and because the global expansion and dynamic nature of intensive aquaculture provide multiple pathways of transmission and unique drivers of virus adaptation. Supported by examples from the literature, we provide reasons why viruses move from wild fish reservoirs to infect domestic fish in aquaculture more readily than 'domestic' viruses move across the interface to infect wild stocks. We also hypothesize that 'wild' viruses moving across the interface to domestic populations of finfish are more frequently associated with disease outbreaks and host switches compared to domestic viruses that cross the interface to infect wild fish.

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