Poor little bats

"White-nose syndrome," first discovered in 2007, has scientists puzzled over the cause of large populations of bats dyeing out across the northeast.  White-nose syndrome is a fungal infection that white growths on the noses, wings and tail of bats  The infection is also associated with abnormal behavior are infected;
• bats flying outside during the day in temperatures at or below freezing;
• bats clustered near the entrance of caves or mines or in areas not normally identified as winter roost sites; and/or
• dead or dying bats on the ground or on buildings, trees or other structures.
          -Brian Man, North Country Radio
Scientists are as of yet unsure of the risk to human so avoidance in the best practice.