Figure 2From: A plague on five of your houses - statistical re-assessment of three pneumonic plague outbreaks that occurred in Suffolk, England, between 1906 and 1918(a) Kaplan-Meier survival curve; dashed horizontal line represents 1-case fatality ratio, (b) histogram of the symptomatic periods of fatal cases (n = 12), (c) histogram of the time between successive cases (n = 11), (d) histogram of transmission (n = 12).Back to article page