| | | | | Arthropod species & virus source(a) | Method of Infection log10/ml (b) | Incubation period (c) | Transmision by bite (d) | Assay of arthropod, log10/ml (e) |
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| Feeding | Injected | Days | °C | Host | Ratio | Whole | Organ | System |
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| | Culiseta inornata, Culex tarsalis, Anopheles freeborni, Ae melanimon, Ae nigromaculis, and Culicoides variipennis became infected after feeding on virus-soaked pledgets. Viremic S. auduboni served to infect Culiseta inornata, Anopheles freeborni and Culicoides variipennis but not Cx tarsalis, Dermacentor parumapertus or Ornithodorus parkeri. Infected Culicoides variipennis transmitted to S. auduboni, but infected Anopheles freeborni did not. Cuilcoides nubeculosus infected after intrathoracic inoculation and after ingestion. Transmission to mouse blood contained in chick skin membrane demonstrated after 16 days incubation at 26C (5). | | | | | | | | | | |
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