Researchers investigate traces of VHS found in Great Lakes fish

Researchers say they found more cases of the fish-killing virus VHS in the Great Lakes last year. But they did not find any big fish kills from the disease. Mike Simonson reports from Superior.

***3/31: WPR has since learned that while new cases of VHS were found last year in the wider Great Lakes basin, there were no new findings of VHS in Lake Superior in 2010. We apologize for the error.***