Observed versus predicted JE cases for observed climate and vaccine model (vaccine, seasonality, temperature, rainfall and SOI):

<p>time series (A); the vertical grey dotted line represents the introduction of the JE vaccine into the National Immunization program in Sarawak, Malaysia in July 2001 and scatter plot (B) of predicted versus observed values of JE cases; diagonal line represent the trend through all data points during the non-vaccine and vaccine years. Model fitted using Poisson regression.