@Article{JNMA-5-1, author = {Xinghao, Wang and Zhang, Liang and Jiajun, Guo}, title = {Dynamics of a Deterministic and Stochastic Susceptible-Exposed-Infectious-Recovered Epidemic Model}, journal = {Journal of Nonlinear Modeling and Analysis}, year = {2023}, volume = {5}, number = {1}, pages = {24--53}, abstract = {

We investigate a susceptible-exposed-infectious-recovered (SEIR) epidemic model with asymptomatic infective individuals. First, we formulate a deterministic model, and give the basic reproduction number $R_0.$ We show that the disease is persistent, if $R_0 > 1,$ and it is extinct, if $R_0 < 1.$ Then, we formulate a stochastic version of the deterministic model. By constructing suitable stochastic Lyapunov functions, we establish sufficient criteria for the extinction and the existence of ergodic stationary distribution to the model. As a case, we study the COVID-19 transmission in Wuhan, China, and perform some sensitivity analysis. Our numerical simulations are carried out to illustrate the analytic results.

}, issn = {2562-2862}, doi = {https://doi.org/10.12150/jnma.2023.24}, url = {https://global-sci.com/article/87860/dynamics-of-a-deterministic-and-stochastic-susceptible-exposed-infectious-recovered-epidemic-model} }