D.A. Henderson > Quotes

“Twenty orphans, one of whom was vaccinated, were put on board a ship. On the eighth day, when a pustule had developed, a second orphan was vaccinated, and so on. When the ship reached its destination, the transfer of vaccinia was made to local residents and the vaccination chain continued.”
― D.A. Henderson, Smallpox: The Death of a Disease: The Inside Story of Eradicating a Worldwide Killer