YOSEMITE NATIONAL PARK (CBS/AP) - California public health officials have tested 100 workers at Yosemite National Park to determine whether they were exposed to the deadly mouse-borne hantavirus.
Nine people who spent time at the park this year have been infected with the rare virus, the majority after staying at the "Signature" cabins in Curry Village. Three of them died.
KTVU-TV Oakland said 100 park workers submitted to voluntary testing on Wednesday and they have been ordered not to discuss the testing.
It was not known when the tests will be completed or if they would be made public.