The History of Inoculation and Vaccination for the Prevention and Treatment of Disease

by Burroughs Wellcome and Company

1913

"The practice of inoculation for the prevention of disease is one of considerable antiquity. The period of its discovery can only be conjectured, but there is little doubt that even in remote times it mush have been recognised by man, that certain diseases occur once only durng the life of an individual, or that after recovery he is generally immune against further attacks of the same disease." -- Chapter 1, Page 10.