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. 2022 Jan 20;22:138. doi: 10.1186/s12889-021-12275-6

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© The Author(s) 2022, corrected publication 2022

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Fig. 4 — Contour plot of the COVID-19 reproduction number $R_{0}$ given in Eq. (2). a Varying quarantine violation rate ν_Q and hospital discharge rate ν_H. b Varying infection rate β and quarantine violation rate ν_Q