How Many Immunizations Does It Take. Reproduced with permission of the California Department of Health. [California : Dept. of Health Services, Immunization Unit, 1986]. Image A025876 from the Images from the History of Medicine (IHM).
Smallpox 1901-1902 An infectious disease unique to humans, caused by either of two virus variants, "Variola major" and "Variola minor." Smallpox is believed to have emerged in human populations about 10,000 BC. The WHO certified the eradication of smallpox in 1979.
A Katrina hero: He hopped into a boat and became a one-man rescue squad