Dear Max:what I deplore is the failure to distinguish between one tenth and nine tenths in the first place. We don't need a special word for killing one in ten any more. In a hundred years it may be that control of infectious diseases will be good enough that we will not need word for infection of a significant fraction of either humans or animals. But until that happy state is achieved, let us as liguaphiles encourage the use of etymologically accurate words. And remember, King Canute was not trying to hold back the tide,he was proving that even a king could not.