Experimental assessment of the susceptibility of Aedes mosquitoes (Diptera: Culicidae) to infection with Jamestown Canyon virus

The susceptibility of the principal Aedes species mosquitoes of the Delmarva Peninsula to infections with Jamestown Canyon (JC) virus was assessed in a series of laboratory experiments. Data revealed that infection rates were 60% or greater for Aedes sollicitans and Aedes taeniorhynchus following infestion of blood that contained 10 super(4.5) and/or 10 super(5.0) suckling mouse intracerebral lethal dose (SMICLD) sub(50)/ml of JC virus. Infection rates for Aedes canadensis were 8% and 48% following ingestion of blood meals that contained 10 super(4.5) and 10 super(6.0) SMICLD sub(50) of virus, respectively. After ingesting blood with comparable amounts of virus, only 8% of Aedes cantator and 12% of Aedes atlanticus became infected.