How basic reproduction number (R0) affects a disease's ability to spread*
| R0 | Initially infected | after 4 cycles | after 7 cycles | after 10 cycles |
|---|---|---|---|---|
| 1.3 (average for seasonal flu) | 5 | 45 | 119 | 282 |
| 2.0 (coronavirus: WHO lower estimate) | 5 | 155 | 1,275 | 10,235 |
| 2.3 | 5 | 244 | 3,008 | 36,643 |
| 2.5 (coronavirus: WHO higher estimate) | 5 | 322 | 5,083 | 79,470 |
| 3.0 | 5 | 605 | 16,400 | 442,865 |
