When smallpox inoculation entered western medical practice in 1721 it aroused considerable controversy. A broad-based cohort of enlightened Germans such as publishers, poets, pastors and elite women attempted to dispel the doubts and encourage the innovative procedure. Yet many parents remained fearful, and the contagiousness of inoculation also necessitated a new approach. National pride in the past defeat of bubonic plague aroused optimism that smallpox could be banished using a similar strategy. The arrival in 1800 of Jenner’s vaccine ended the debates by offering yet another promising...