مشخصات پژوهش

‎This study introduces an SCIRS epidemic model that incorporates disease immunity to analyze the spread of COVID-19‎. ‎By determining the equilibrium points of the system and evaluating their local and global ‎ , ‎we examine the impact of the immune system on the transmission rate‎. ‎Additionally‎, ‎we introduce a Hopf bifurcation at the native equilibrium‎. ‎The Adams-Bashforth-Moulton method is used to obtain numerical solutions for the model‎, ‎along with a mathematical analysis‎. ‎To predict the transmission of COVID-19‎, ‎we conduct a numerical simulation using real-world data‎.