Abstract
Aedes albopictus (mosquito) cells persistently infected with Semliki Forest virus released an agent which inhibited virus production by A. albopictus cells infected with homologous virus. Inhibition of virus production was accompanied by a marked reduction in the synthesis of viral RNA and viral proteins. Expression of the antiviral effect was prevented by pretreatment of cells with actinomycin. No analogous antiviral activity was detected in culture fluids of A. albopictus cells persistently infected with a flavivirus (Kunjin virus) or a bunyavirus (Bunyamwera virus).
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