Parameter values for transmission dynamics of SARS-CoV-2 in the World Health Organization African region
| Parameter | Probability description | Value | Best case | Worst case |
| P1 | Risk of exposure (S1 to S2) | Country specific | 10% lower | 10% higher |
| P2 | Attack rate (S2 to S3) | 0.065 | 0.03 | 0.10 |
| P3 | Asymptomatic infection (S3 to S4) | 0.8 | 0.88 | 0.72 |
| P4 | Mild infection (S3 to S5) | 0.08 | 0.088 | 0.072 |
| P5 | Moderate infection (S3 to S6) | 0.08 | 0.088 | 0.072 |
| P6 | Severe infection (S3 to S7) | 0.03 | 0.027 | 0.033 |
| P7 | Critical infection (S3 to S8) | 0.01 | 0.009 | 0.011 |
| P8 | Recovery from severe state (S7 to S10) | 0.5 | 0.45 | 0.55 |
| P9 | Recovery from critical state (S8 to S10) | 0.12 | 0.108 | 0.132 |
| P10 | Death from severe state (S7 to S9) | 0.5 | 0.45 | 0.55 |
| P11 | Death from critical state (S8 to S9) | 0.88 | 0.868 | 0.892 |
| P12 | Recovery from asymptomatic, mild and moderate state | 1.00 | 1.00 | 1.00 |