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Figures
Figure 1: Age distribution of 3152 laboratory-confirmed cases of pandemic H1N1 influenza in the province of Ontario with onset of symptoms between Apr. 13 and June 20, 2009.
Figure 2: Breakdown of laboratory-confirmed cases of pandemic H1N1 influenza available for analysis.
Figure 3: Estimates of the incubation period (time from exposure to onset of symptoms) in 316 laboratory-confirmed cases of pandemic H1N1 influenza for whom these data were available. Estimates were calculated as the time between exposure date (midpoint of earliest and most recent exposure) and date of symptom onset. The blue curve represents the best-fit log-normal distribution of observed data.
Figure 4: Estimates of the duration of symptoms (time from onset to resolution of symptoms) in 712 laboratory-confirmed cases of pandemic H1N1 influenza for whom these data were available. The blue curve represents the best-fit log-normal distribution of observed data.
Figure 5: Estimates of the basic reproductive number (R0, number of new cases created by a single primary case in a susceptible population) in the province of Ontario during the wave of pandemic H1N1 influenza in the spring of 2009. Estimates were generated with the use of Markov Chain Monte Carlo simulation modelling. The mean estimate for R0 is 1.31 (95% credible interval 1.25–1.38).