Table 1 List of parameters, variables, and their biological meanings
Notation | Meaning | Value | Reference |
|---|---|---|---|
\(\beta\) | Transmission rate | 1.0 | [15] |
\(\delta\) | Vaccination rate | 0.0–1.0 | (Varied) |
\(l\) | Lockdown level | 0.0–0.9 | (Varied) |
\({l}_{d}\) | Lockdown day | – | (Varied) |
\(q (0\le q\le 1)\) | Lockdown maintenance factor | 0.0–1.0 | Estimated |
\(\alpha\) | Infection rate | 1/5 | [15] |
\(\gamma\) | Recovery rate | 0.1 | Estimated |
\(1-\eta (0\le \eta \le 1)\) | Vaccine efficacy | 0.0–1.0 | (Varied) |
\(S\left(t\right)\) | Number of susceptible individuals | 0.9998 | Estimated |
\(L(t)\) | Lockdown state | 0.0 | Estimated |
\(E(t)\) | Number of exposed individuals | 0.0 | Estimated |
\(I(t)\) | Number of infected individuals | 0.0001 | Estimated |
\(R(t)\) | Number of recovered individuals | 0.0 | Estimated |
\(V(t)\) | Number of vaccinated individuals | 0.0 | Estimated |
\({E}_{V}(t)\) | Number of vaccinated exposed individuals | 0.0 | Estimated |
\({I}_{V}(t)\) | Number of vaccinated infected individuals | 0.0001 | Estimated |
\({R}_{V}(t)\) | Number of vaccinated recovered individuals | 0.0 | Estimated |