Mysterious virus found in Wisconsin trout

State officials worry about impacts, but release infected fish

State natural resource officials are wondering how a mysterious virus found  its way to Wisconsin trout and what it will mean for the health of aquatic  life.

“It’s a big unknown,” said Susan Marcquenski, a fish health specialist for  the state Department of Natural Resources. “There’s very little information  about the effect of the virus on cool-water species.”

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