Table 3 Description of variables and parameters in the model equation.
From: A mathematical model for the transmission of co-infection with COVID-19 and kidney disease
Parameter | Description | Value | Reference |
|---|---|---|---|
\(\Delta\) | Recruitment rate of the human population | 630 | Calculated |
\({\phi }_{1}\) | Contact rate of Covid-19 | 0.1175 | Fitted |
\({\phi }_{2}\) | Contact rate of kidney disease | 0.3425 | Fitted |
\(\theta\) | The parameter adjusting for the enhanced transmission of kidney disease among co-infected individuals and those in the end-stage of the disease | 1.1 | |
\(\gamma\) | Parameter accounting for the amplified transmissibility of COVID-19 in co-infected persons | 1.0 | Estimated |
\({\sigma }_{1}\) | Progression rates to fully increased kidney disease by compartments \({I}_{k}\) | 0.15 | Fitted |
\({\sigma }_{2}\) | Progression rates to fully increased kidney disease by compartment \({I}_{kc}\) | 0.15 | Fitted |
\({\alpha }_{1},{\alpha }_{2}\) | Parameters denote adjustments for the susceptibility of individuals with kidney disease to contracting COVID-19 infection | 1.3 | |
\({\tau }_{1}\) | COVID-19 single-infection recovery rate | 0.067 | Estimated |
\({\tau }_{2}\) | COVID-19 recovery rate in the compartment \({I}_{kc}\) | 0.067 | Estimated |
\({\tau }_{3}\) | Recovery rate among co-infected in compartment \({I}_{kdc}\) for COVID-19 | 0.067 | Estimated |
\(\mu\) | Human natural death rate | 0.000038 | Calculated |
