Vaccines are the tugboats of preventive health.

PMID 4021014. M. "Selective epidemiologic control in smallpox eradication".

: /ˈfeɪɡiː/; born 1936 in Decorah Iowa) is an American epidemiologist who is credited with "devising the global strategy that led to the eradication of smallpox in the late 1970s". H. William Herbert FoegeM.