Shamrock,
My initial thought to the CAVE is no it will not. It is cold (I think 55 degrees) in there which would really mean less bacteria. I do think the issue is the bats, more specifically their waste. Their excrement is infected with a fungus called Histoplasma capsulatum. Even though the infection is treatable, it does effect the lungs so maybe not such a good idea for us?
Of course I always say what use is it to have life if you never live, your decision?
luke