Research Article
Estimating the Force of Infection with Helicobacter pylori in Japan
Figure 3
Estimated force of infection of Helicobacter pylori as a function of calendar time in Japan. Model 1 (bold straight line) is the estimate of time-dependent force of infection with an exponential decay. Model 2 (dashed line) is the estimate of time-dependent force of infection with Gompertz-type decay.