Vaccine development is a long complex process often lasting 10 15 years and involving a combination of public and private involvement . History of vaccine development disease that is usually transmitted to humans by the bites of rodent fleas it was one of the scourges of early human history. Documents the history of vaccine development from the 1798 smallpox vaccine to the present day describes major innovations in detail including chemical. Learn about the history of measles from the pre vaccine era to vaccine development to measles elimination
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