|   |  |   |  |       Arthropod species & virus source(a)       |       Method of Infection log10/ml (b)       |       Incubation period (c)       |       Transmision by bite (d)       |       Assay of arthropod, log10/ml  (e)       | 
|---|
  |       Feeding       |       Injected       |       Days       |       °C       |       Host       |       Ratio       |       Whole       |       Organ       |       System       | 
|---|
 
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  |  |       Many arthropods have been infected experimentally.  Of major importance are the findings with respect to Cx tarsalis, Cx pipiens, Cx quinquefasciatus and Cx nigripalpus (9,33,34,35).       |  |       Transovarial transmission demonstrated in colonized C. pipiens complex mosquitoes originally collected in Memphis, Tennessee, and McLeansboro, Illinois (37).        |   |  |  |  |  |  |  |  |  |  |  
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