At our grotto meeting last night, the hot topic was WNS. Our medical doctor of the group, said that WNS reminded her of how AIDS was discovered, studied and spread. It took "3-4 years" to find the cause of AIDS and that was with a lot of funding and research. She said her gut feeling is that WNS is a virus and the fungus is opportunistic. AIDS was traced back to Africa, similarly to how WNS has been traced to the Albany, NY area. I asked if she thought it could be influenced by environment or pesticides, etc. She would guess not. She said sometimes virus's just happen—we don't know why.
I don't know if this has been discussed or not, but I found it to be an interesting observation and thought I would share.