Abstract
The susceptibility of the principal Aedes species mosquitoes of the Delmarva Peninsula to infection 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 ingestion of blood that contained 104.5 and/or 105.0 suckling mouse intracerebral lethal dose (SMICLD)50/ml of JC virus. Infection rates for Aedes canadensis were 8% and 48% following ingestion of blood meals that contained 104.5 and 106.0 SMICLD50 of virus, respectively. After ingesting blood with comparable amounts of virus, only 8% of Aedes cantator and 12% of Aedes atlanticus became infected. JC virus was transmitted to mice by a low percentage of infected Ae. canadensis.
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