The Vaccinators further adds to this argument by highlighting how these social networks worked to obtain the Jennerian vaccine to help prevent smallpox.
Jannetta describes how the Japanese were able to obtain the Jennerian vaccine by tracking its origins in England to its transmission to Japan.
Chapters 3, 4, and 5 describe how as the social network of those interested in Western medicine grew, so did attempts to obtain the Jennerian vaccine. Jannetta states that two individuals are commonly referred to as starting the chain of events that led to the Japanese acquisition of the Jennerian vaccine: Hendrik Doeff and Baba Sajuro (p.
Chapter 6 details how the Jennerian vaccine quickly spread throughout all of Japan's major areas within a few weeks.