>Our key result is that hosts most closely related to humans harbour zoonoses of lower impact in terms of morbidity and mortality, while the most distantly related hosts—in particular, order Chiroptera (bats)—harbour highly virulent zoonoses with a lower capacity for endemic establishment in human hosts.
True, but to be dangerous the have to pass cross species barrier, before that event, virulence is exactly zero. So, random bat viruses have zero virulence in people.
>Our key result is that hosts most closely related to humans harbour zoonoses of lower impact in terms of morbidity and mortality, while the most distantly related hosts—in particular, order Chiroptera (bats)—harbour highly virulent zoonoses with a lower capacity for endemic establishment in human hosts.
https://royalsocietypublishing.org/doi/full/10.1098/rstb.201...