Estimation and sensitivity analysis of a COVID-19 model considering the use of face mask and vaccination

Abstract

To model the COVID-19 infection and develop effective control measures, this paper proposes an SEIR-type epidemic model considering the impact of face-mask wearing and vaccination. Firstly, the effective reproduction number and the threshold conditions are obtained. Secondly, based on the data of South Korea from January 20, 2022 to March 21, 2022, the model parameters are estimated. Finally, a sensitivity analysis and the numerical study are conducted. The results show that the face-mask wearing is associated with $$83\%$$ 83 % and $$90\%$$ 90 % reductions in the numbers of cumulative cases and newly confirmed cases, respectively, after a period of 60 days, when the face mask wearing rate increases by $$15\%$$ 15 % . Furthermore, the vaccination rate is associated with $$75\%$$ 75 % and $$80\%$$ 80 % reductions in the numbers of cumulative cases and the newly confirmed cases, respectively, after the same period of 60 days when the vaccination rate is increased by $$15\%$$ 15 % . A combined measure involving face-mask wearing and vaccination may be more effective and reasonable in preventing and controlling this infection. It is also suggested that disease control departments should strongly recommended the wearing of face masks s as well as vaccination to prevent the unvaccinated people from becoming infected.

Assessing the Knowledge, Attitudes, and Vaccination Practices Towards COVID-19 Vaccination Among Mainland Chinese Nursing Students and Interns: A Multicenter Cross-Sectional Study

“…94.1% of the participants knew that they should still wear masks after vaccination, which indicates that nursing students and interns have a strong sense of self-protection and health awareness under the influence of the social environment in China. 33 …”

“…94.1% of the participants knew that they should still wear masks after vaccination, which indicates that nursing students and interns have a strong sense of selfprotection and health awareness under the influence of the social environment in China. 33 In addition, in our study, social media (online news, WeChat) was the primary source of COVID-19 vaccine information for participants. With the widespread use of the Internet and mobile devices, young people have easy access to various sources of information through the Internet and social media.…”