中北大学学报（自然科学版）2024，Vol.45Issue(4)：481-487,7.DOI:10.3969/j.issn.1673-3193.2024.04.009
疫苗接种及多种措施对新型冠状病毒传播及死亡的影响
Impact of Vaccination and Multiple Measures on Corona Virus Infection and Death
摘要
Abstract
In order to gain insights into the mechanism of corona virus transmission,based on the charac-teristics of vaccination,the SEIR transmission dynamics model of corona virus was established by taking into account various prevention and control measures such as population flow,nucleic acid detection and personal protection.The infected persons were classified into asymptomatic,mild and severe infected per-sons.The next generation matrix method was used to calculate the basic regeneration number and Lyapu-nov function was used to analyze the stability of the equilibrium point.Through numerical simulation and sensitivity analysis,it is found that increasing the vaccination rate is helpful to reduce the number of deaths;Control of floating populations and nucleic acid testing are both helpful in reducing the number of deaths and controlling the spread of the epidemic.Low vaccination rates will not reduce the number of asymptomatic infections,but they can reduce the total number of infections and deaths.关键词
传染病模型/无症状感染/疫苗接种/新型冠状病毒/全局稳定性Key words
epidemic model/asymptomatic infection/vaccination/corona virus/global stability分类
数理科学引用本文复制引用
胡国庆,薛亚奎..疫苗接种及多种措施对新型冠状病毒传播及死亡的影响[J].中北大学学报（自然科学版）,2024,45(4):481-487,7.基金项目
国家自然科学基金资助项目(11971278) （11971278）
山西省自然科学青年基金资助项目(201801D221040) （201801D221040）
