An Inquiry into the Causes and Effects of the Variolae Vaccinae
Left image: Observational drawing of case studies conducted by Jenner on whether a cowpox vaccination would stop the development of smallpox on a 5 year old boy. Middle image: Observational drawing of case studies conducted by Jenner on whether a cowpox vaccination would stop the development of smallpox on a 6 year old boy. Right …