From: Infection fatality rate and infection attack rate of COVID-19 in South American countries
Parameter description | Symbol | Value |
---|---|---|
Time-varying transmission rate | \(\beta (t)\) | Variable |
Infectiousness onset rate | \(\sigma\) | \(1/2\,{\mathrm{ day}}^{-1}\)Â Â |
Rate of loss of infectiousness | \(\gamma\) | \(1/3\,{\mathrm{ day}}^{-1}\)Â Â |
Removal rate of hospitalized cases | \(\kappa\) | \(1/8\,{\mathrm{ day}}^{-1}\)Â Â |
Ratio of severe cases out of all infected cases | \(\theta\) | Variable |
Proportion of mortality out of severe cases | \(\pi\) | Variable |
Proportion of fully protected individuals due to vaccination | \(\eta\) | \(0.85\) |
Proportion of susceptible individuals who received COVID-19 vaccine per day | \(\tilde{v }(t)\) | Based on data |