Yosemite warning visitors of deadly virus outbreak
September 11, 2012 4:24 PM
Following an outbreak of hantavirus, 22,000 people who visited Yosemite National Park since June have now been warned they should get tested. There have been eight confirmed cases and three people have died. Bill Whitaker spoke with one of the survivors, who said the warning came too late.Did Park Service do enough to warn Yosemite visitors of hantavirus risk?