[Jewbacca]

From a purely Darwiian standpoint, a really well-adapted virus causes little or no ill effect on its host.

I hate sloppy scietific writing.

[wolfcreek]

And for years I thought I was being an inhospitable host.

Makes sense.

[decimon]

From a purely Darwiian standpoint, a really well-adapted virus causes little or no ill effect on its host.

I think that means an ill-behaved virus dies out for killing its hosts.