A Study on Herd Immunity of COVID-19 in South Korea: Using a Stochastic Economic-Epidemiological Model

Hojeong Park, Songhee H. Kim

    Research output: Contribution to journalArticlepeer-review

    17 Citations (Scopus)

    Abstract

    Vaccination is an effective measure to control the diffusion of infectious disease such as COVID-19. This paper analyzes the basic reproduction number in South Korea which enables us to identify a necessary level of vaccine stockpile to achieve herd immunity. An susceptible-infected-susceptible model is adopted that allows a stochastic diffusion. The result shows that the basic reproduction number of South Korea is approximately 2 which is substantially lower than those of the other regions. The herd immunity calculated from economic-epidemiological model suggests that at least 62% of the susceptible population be vaccinated when COVID-19 vaccine becomes available.

    Original languageEnglish
    Pages (from-to)665-670
    Number of pages6
    JournalEnvironmental and Resource Economics
    Volume76
    Issue number4
    DOIs
    Publication statusPublished - 2020 Aug 1

    Bibliographical note

    Publisher Copyright:
    © 2020, Springer Nature B.V.

    Keywords

    • COVID-19
    • SIS
    • Stochastic disease
    • Vaccination stockpile

    ASJC Scopus subject areas

    • Economics and Econometrics
    • Management, Monitoring, Policy and Law

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