Table 1. Observed transition in the number of new infections in successive months.
| Initial State | Number of transitions to the following stages | |||||
| 0 | 1 | 2 | 3 | 4 | 5 | |
| 0 | 8 | 5 | 2 | 1 | 0 | 0 |
| 1 | 3 | 1 | 4 | 3 | 0 | 0 |
| 2 | 1 | 5 | 1 | 2 | 1 | 0 |
| 3 | 4 | 1 | 2 | 0 | 1 | 1 |
| 4 | 0 | 0 | 1 | 1 | 0 | 0 |
| 5 | 0 | 0 | 1 | 0 | 0 | 0 |
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