NEW ORLEANS—A fungus that has killed millions of bats nationwide has been found in Louisiana, but no bats in the state have been sickened by it so far. The disease it causes is called white-nose syndrome because bats develop fuzzy white patches of fungus on their noses, wings, and other hairless areas. The disease also dehydrates bats and wakes them from winter hibernation, using energy that they can’t replace because the insects they eat aren’t flying around. The syndrome has killed so many northern long-eared bats that federal officials recently proposed listing them as endangered. Louisiana is the 41st state where the fungus has been found; the disease has been confirmed in 38 of them, Marilyn Kitchell, the U.S. Fish and Wildlife Service’s white-nose syndrome spokesperson, said in an interview Tuesday. In Louisiana, the fungus was identified on Brazilian free-tailed bats, a species that can be infected without developing the …