Estimated mean, 95%CI, maximum and minimum weekly incidences of H1N1 cases in the Italian population in the 0 – 4, 5 – 14, 15 – 64, 65+ years age-classes and in the overall population obtained using the TVR, with-overdispersion model in its Baseline, Susceptibility and Immunity variants. Best fit models are defined according to the DIC score.