State-Dependent Pulse Vaccination and Therapeutic Strategy in an SI Epidemic Model with Nonlinear Incidence Rate

<div>The existence of order-1 periodic solution of system (<a href="https://static.hindawi.com/articles/cmmm/volume-2019/3859815/figures/#EEq3">3</a>).</div>

Computational and Mathematical Methods in Medicine

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Figure 6

Figure 6: State-Dependent Pulse Vaccination and Therapeutic Strategy in an SI Epidemic Model with Nonlinear Incidence Rate 