Formula 10: Susceptibility rate = (0.5 Close contacts)
Formula 16: Recovery rate 2 = (critically ill patientsCoefficient of cure 2/T5)
Formula 5: Patients with mild disease = INTEG (incidence rate − recovery rate 1 − rate of severe)
Formula 11: Infection rates = (contact number Transmission coefficient vulnerable population Diagnosed patients/Total number-0.8 vaccination Transmission coefficient Contact numbervulnerable population Diagnosed patients/Total number)
Formula 17: Mortality rate = (critically ill patients Coefficient of death/T6 − 0.6 vaccination critically ill patients/T6)
Formula 6: Critically ill patients = INTEG (rate of severe − recovery rate 2 − mortality rate)
Formula 12: Diagnostic rate = (Latent patients/T1)
Formula 18: Total number = (The number of cure + vulnerable population + the number of deaths)
Constants: transmission coefficient (C1 = 0.24), number of contacts (C2 = 8), vaccination (C3 = 0.8), coefficient of cure 1 (C4 = 0.8), coefficient of cure 2 (C5 = 0.6), coefficient of death (C6 = 0.15), T1–T6. All data are set based on real data.