to seek emergency medical attention. total number of infections is six. the centers for disease control warning that 10,000 campers who stayed between june 10 and august 24 could be at risk. hanta virus is carried in the feces and urine and saliva of deer mice and other rodent. it has a six week incubation period. it starts with a shortness of breath and cough and progresses to respiratory failure. >> hanta virus has mortality rate of 38%. a third of the people with it will die. >> they closed the so-called luxury cabins on tuesday, saying the double log design made it easy for mice to nest between the walls. a report warned park officials that rodent inspection efforts should be increased after a visitor fell ill. the state says that while officials in yosemite park did