Symbol | Meanings | Value at Different Stages | Source | |||||
3.3 - 3.9 | 3.10 - 3.14 | 3.15 - 3.25 | 3.26 - 3.30 | 3.31 - 4.7 | 4.8 - 5.11 | |||
N | Total population of Jilin | 3623713 | [20] | |||||
θ | Vaccine coverage rate | 87% | [21] | |||||
δ | Immune escape rate of Omicron | 0.35 | [23] | |||||
C | Number of contacts | 14 | 7 | 6 | 5 | 4 | 4 | [24] |
q | Track rate | 0.25 | 0.25 | 0.25 | 0.55 | 0.65 | 0.7 | [25] |
(days) | Time of isolation | 14 | [26] | |||||
(days) | Time for group to stay at E1 | 1 | [17] | |||||
(days) | Time for group to stay at E2 | 2 | [17] | |||||
ε | Proportion with symptoms | 0.525 | [27] | |||||
| Detection rate with symptoms | 0.2306 | — | — | — | — | — | Estimate |
— | 0.4 | 0.55 | 0.65 | 0.7 | 0.75 | [28] | ||
| Detection rate without symptoms | 3.5513e−14 | — | — | — | — | — | Estimate |
— | 0.4 | 0.5 | 0.65 | 0.7 | 0.75 | [28] | ||
| Tracking isolation detection rate | 0.55 | [28] | |||||
γ | Recovery rate | 0.1 | [29] | |||||
β | Contact infection rate of symptomatic infected persons | 0.4265 | Estimate | |||||
η | Attenuation factor | 0.1440 | Estimate |