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Fig. 2 | BMC Public Health

Fig. 2

From: Influenza vaccination should have no border: cost-effectiveness of cross-border subsidy

Fig. 2

Structure of the model. (A) Diagram of the contact mixing patterns between and within the Israeli and the Palestinian populations. Each component represents a disjoint group and specifies its size and age stratification. The connections between components describe contacts between individuals from each group. The groups Palestinians employed in Israel (PEI) and Israelis in close contact with PEI (ICP) interact directly with each other and serve as a bridge between the general Israeli and Palestinian populations. There is also direct contact between the Israeli-Arabs and the Palestinian groups due to family visits. (B) Compartmental diagram of the transmission model. Susceptible individuals start in compartment S, from which they may become infected but not yet infectious and transition to the compartment E, until they move to an infectious compartment. Infectious individuals can be either symptomatic Is or asymptomatic Ia, until recovery, when they move to compartment R. Individuals who are effectively vaccinated transition to the V compartment, and are fully protected for the entire season

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