| Type of Transmission | Acquisition Access Period (hour) | Inoculation Access Period (hour) | Ref. |
| Nonpersistent | 1 | 2-24 | 10 |
| Semipersistent | 6-24 | 8-24 | 10, 16 |
| Persistent | 48-72 | 48-72 | 3, 6, 8, 9 |
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