The Wisconsin DNR advises, "Viral Hemorrhagic Septicemia, or VHS, is a new fish disease that can kill a broad range of native game fish, panfish and bait fish and so poses a potential threat to Wisconsin’s great fishing and the state’s $2.75 billion sportfishing industry. The disease was first detected in Wisconsin in May 2007 in fish from the Lake Winnebago and Lake Michigan systems." Information on how to avoid spreding this disease to Pewaukee and other area lakes can be found in the publication, New VHS Fish Disease Potentially A Serious Threat to Wisconsin Fishing which is available here on the PLIA website. A VHA poster and a pamphlet on how to safely handle minnows to avoid spreading VHS entitled Minnows as Bait are also available on this website. You can find more information about this disease at the Wisconsin DNR website here.