The paper itself about the fungus being killed by UV light is here: https://www.fs.fed.us/nrs/pubs/jrnl/2018/nrs_2018_palmer_001.pdf I don't know a whole lot about White Nose Syndrome, but the paper says that the fungus which causes it is widespread throughout Eurasia and has little effect on bats native there. The pattern of its spread in North America suggests an introduction to the continent (first recorded in 2006 in New York). Mortality rates of hibernating bats in North American sites is up to 90%
