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Simulation analysis. Number of connected (i.e. infected) farms (Nc) and number of departing (i.e. infectious) farms (Nd) for each type of midge movement. Nd is less than Nc since one ‘departing farm’ might infect more than one ‘connected farm’. The last three columns show the proportion of each individual movement in the farm connections.
| Nc | Nd | %downwind | %upwind | %random | |
|---|---|---|---|---|---|
| downwind | 798 | 236 | 100 | 0 | 0 |
| upwind | 771 | 525 | 0 | 100 | 0 |
| random | 42 | 24 | 0 | 0 | 100 |
| mixed R–D | 257 | 23 | 83 | 0 | 17 |
| mixed R–U | 43 | 10 | 0 | 15 | 85 |
