Interesting graph from CDC:
The article referenced is this one.
Edited to add:
However … in terms of vax or no-vax, morbidity might be relevant too - the figure above is only for mortality.
How are morbidity-mortality correlated? Just because fewer people die from an infectious disease doesn't mean fewer people got sick - it could mean the same number got sick but more survive. But do the survivors recover completely or not? If they don't - do they have mild/severe health issues because of it? These cannot be answered from the figure below. Still more questions ...
Edited by MamaMunchkin - 8/20/12 at 2:40pm