Table 1. SIRS model parameters.
| Parameter | Values | Details |
| Baseline reproduction number, R0 |
2.30 | Estimated |
| Average duration of infection, 1/γ |
7 days | (18) |
| Immune duration, 1/ω | Short-lived (3 months), 1 year, 10 years, permanent |
Assumed |
| Natural birth rate, μ | 1/80 for the youngest class; 0 for all the other age classes |
80-year life expectancy |
| Natural mortality rate, ν |
0 for all age classes | Assumed |
| Average rate of aging, a |
1 for all age classes | Reverse of the 5-year age interval |
| Infection-fatality ratio | age-specific IFR | Estimated from (16) |
| Demography | age-specific proportion of population |
Annualized from (23) |
| Social mixing pattern, C |
age-structured number of contacts |
Annualized from (24) |