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Bogdanov-Takens Bifurcation in SIRI Model with Multiple Reinfection of COVID-19

Malaysian Journal of Science
Abstract In the presence of cases of COVID-19 reinfection, we propose a SIRI (Susceptible-Infected-Recovery-Infected) spread model of two COVID-19 variants. This model considers the possibility of individuals becoming reinfected with the same or different variants, although the risk of reinfection with the same variant remains lower due to natural ...
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