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Simulations of Model 1 ((a) and (d)), Model 2 ((b) and (e)), and Model 3 ((c) and (f)) to assess the impact of a 15% additional reduction in COVID-19 transmission ((a) and (c)) and a 30% additional reduction in COVID-19 transmission ((d) and (f)) for different vaccination rates (ξ = ξ1 = ξ2) on the number of new daily COVID-19 cases in WA. The values of the other parameters used for the simulation are as given in Tables S7–S11 of the SI.
