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An orbivirus of mosquitoes which induces CO2 sensitivity in mosquitoes and is lethal for rabbits
M C Vazeille1, L Rosen, J C Guillon
1Arbovirus Program, Pacific Biomedical Research Center, University of Hawaii, Honolulu 96822.
Abstract:
An orbivirus, JKT-7400, isolated from Culex mosquitoes in Indonesia, replicated to a high titer and induced cytopathic effects in Aedes albopictus cell cultures. The virus produced lethal sensitivity to carbon dioxide in Culex and Aedes mosquitoes as well as in Drosophila melanogaster fruit flies but was not the agent of the hereditary sensitivity to carbon dioxide previously described for Culex quinquefasciatus. When injected intravenously in high doses, JKT-7400 virus was lethal for rabbits, apparently without replicating to a significant extent. It was not pathogenic for adult mice inoculated intravenously or for adult or suckling mice inoculated intracerebrally and intraperitoneally. Unlike an orbivirus isolated from Culex mosquitoes in China, JKT-7400 did not interfere with the replication of Japanese encephalitis virus in mosquitoes.