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# Table 1 Parameters used in the main text

From: Modeling of suppression and mitigation interventions in the COVID-19 epidemics

Parameter | Description | Value (range) |
---|---|---|

β(t)
| Transmission rate with time | \(\beta (t) = \frac {\mathbf {R}_{t}}{\left (\frac {\theta _{a}(1-f_{I})}{\gamma _{A}}+\frac {f_{I}}{\gamma _{I}}+\frac {\theta _{p} f_{I} f_{P}}{\omega }\right)}\) |

R_{0}
| Basic reproduction number | 2.2 [34] |

\(\frac {1}{\delta }\) | Incubation period | 5.1 days [35] |

\(\frac {1}{\gamma _{I}}\) | The infectious period for symptomatic infection | 2.3 days [24] |

\(\frac {1}{\gamma _{A}}\) | The infectious period for asymptomatic infection | 2.3 days [assumed] |

f_{I}
| The proportion of symptomatic infection | 0.8 [36] |

\(\frac {1}{\omega }\) | The delay days between severe infection and hospitalization | 2.7 days [24] |

\(\frac {1}{\mu }\) | Hospital stay period for severe infection | 8 days [24] |

f_{P}
| The propotion of infection requiring hospitalization | 0.3 [24] |

f_{D}
| The proportion of severe infection to die after hospital stay | 0.065[calculated] [31] |

θ_{a}
| Infectious factor for asymptomatic infections | 1.0 [32] |

θ_{p}
| Infectious factor for severe infections | 1.0 [assumed] |

I_{m}
| Medical resources | 0.0023 [calculated] [37] |

I_{t}
| Tolerance parameter for infection | \(\frac {100}{N}\) [assumed] |

α_{s}
| Suppression coefficient | [0.1,0.4] [assumed] |

α_{m}
| Mitigation coefficient | [0.5,0.8] [assumed] |