Stochastic Model for the Spread of the COVID-19 Virus
Stochastic Model for the Spread of the COVID-19 Virus作者机构:Probability and Statistics Laboratory UR/11/ES-76 Faculty of Sciences of Sfax Sfax Tunisia
出 版 物:《Applied Mathematics》 (应用数学(英文))
年 卷 期:2021年第12卷第1期
页 面:24-31页
学科分类:07[理学] 0701[理学-数学] 070101[理学-基础数学]
主 题:Stochastic Model COVID-19 EULER Method SEIR Model Markov Chain
摘 要:The COVID-19 pandemic has become a great challenge to scientific, biological and medical research as well as to economic and social sciences. Hence, the objective of infectious disease modeling-based data analysis is to recover these dynamics of infectious disease spread and to estimate parameters that govern these dynamics. The random aspect of epidemics leads to the development of stochastic epidemiological models. We establish a stochastic combined model using numerical scheme Euler, Markov chain and Susceptible-Exposed-Infected-Recovery (SEIR) model. The combined SEIR model was used to predict how epidemics will develop and then to act accordingly. These COVID-19 data were analyzed from several countries such as Italy, Russia, USA and Iran.