TY - JOUR T1 - Effects of Media Coverage and Temporary Immunity to a Stochastic SEIR Epidemic Model AU - Zhang , Jing AU - Wei , Fengying JO - Annals of Applied Mathematics VL - 4 SP - 442 EP - 458 PY - 2021 DA - 2021/01 SN - 36 DO - http://doi.org/ UR - https://global-sci.org/intro/article_detail/aam/18593.html KW - stochastic SEIR model, media coverage, temporary immunity, persistence, extinction, stationary distribution. AB -
A type of SEIR epidemic model with media coverage and temporary immunity is investigated in this paper. The existence and uniqueness of the global positive solution with any positive initial value is proved. Under the condition $R^s_0 > 1$, we prove that the disease is persistent in the mean for a long run. Furthermore, by constructing suitable Lyapunov functions, some sufficient conditions that guarantee the existence of stationary distribution are derived. We also obtain that, if the condition $R^e_0 < 1$ is satisfied, then the disease is extinct with an exponential rate. As a consequence, some examples and numerical simulation are demonstrated to show the validity and feasibility of the theoretical results.