>Presumably it's been there for a long time and we just noticed. As a previous commenter noted, rats are an invasive species in the expanding human/wildland in

>Presumably it's been there for a long time and we just noticed. As a previous commenter noted, rats are an invasive species in the expanding human/wildland interface. So they will be encountering novel bat viruses. There may be other existing bat to human transmission paths, but maybe not....