It was only a matter of time, Keith Poulsen knew.

Poulsen, director of the Wisconsin Veterinary Diagnostic Laboratory, with a team of diagnostic scientists led by Ailam Lim, had been closely tracking the ongoing spread of highly pathogenic avian influenza as migrating wild birds were spreading it across the country this winter and spring.

So, his team was prepared when they recently identified Wisconsin’s first known case of the virus, from a commercial chicken producer in Jefferson County.

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