[jandrese]

If you are out in the wilderness you are always around rodent droppings. Hantavirus is one of those things that backpacking magazines freak out about, but it's so incredibly rare that there's basically no point in wasting brain cells worrying about it. It's down in the "act of God" ways you might die (meteor strike, lightning, etc...).

[goda90]

Yeah, we were told not to worry too much, just to be wary since someone had died 30 years prior. What I've read is that if you're in an enclosed space with a lot of rodent droppings(say an abandoned cottage or something) then there is some risk, but open air is safe.