We have all got used to warnings about the CBRN threat, with billions spent, so when mice droppings carrying the Hantavirus pulmonary syndrome may have affected 10k campers in Yosemite National Park, we are reminded that nature can kill too and with a 30% mortality rate.
Link: http://www.bbc.co.uk/news/world-us-canada-19405641 and with a highter estimate for those affected 10k:http://www.bbc.co.uk/news/world-us-canada-19447160
