Figure 9

Behavioural epidemiology model for analysing technical intervention of game theory, a model that considers modification of the individual's strategy. \({{V}}\) denotes the vaccinated group, and \({{U}}\) denotes the unvaccinated group. The individual changes the strategy according to the strategy conversion rate \({{\Phi}}\). We classified \({{{\beta}}}_{{{V}}}\) and \({{{\beta}}}_{{{U}}}\) because the infection rate differs as per the strategy. Accordingly, each group was divided according to the strategy; hence, the model was divided into five compartments: \({{{S}}}_{{{V}}},\boldsymbol{ }\boldsymbol{ }{{{S}}}_{{{D}}},\boldsymbol{ }{\boldsymbol{ }{{I}}}_{{{V}}},\boldsymbol{ }\boldsymbol{ }{{{I}}}_{{{U}}},\boldsymbol{ }\boldsymbol{ }{{R}}\). The individuals from different strategies may meet. Therefore, we expressed this as the cross-infection rate,\({{{\beta}}}_{{{c}}}\)