Here is the WHO on Vaccinations:

http://www.who.int/bulletin/volumes/86/2/07-040089/en/

which save an estimated 6 million lives a year, protect countless from debilitating effects of preventable illness and globally save $10's of billions. When we have a successful Malaria vaccine, Sub-Saharan Africa will save the current $100 billion GDP annual loss to this disease.

For individual health protection, for herd protection and for financial security, vaccinations make sense.

Dave.