You'd think the cold would kill the viruses.
Mountaineers who ascend North America's loftiest peak are often brought down to earth by "virus-laden poo" left behind by previous climbers, a medical report says.
Now imagine explaining to someone's family their loved on died climbing that mountain. They ask "Did he fall, die of exposure, avalanche?", you have to say "Um no, he died because of poo". That would be a shitty way to go.
http://www.cnn.com/2005/TRAVEL/DESTI...eut/index.html