[Experimental studies on the transmission of hemorrhagic fever with renal syndrome virus by gamasidea mites and fleas].
Hemorrhagic fever with renal syndrome (HFRS) virus was isolated from 3 species of gamasidea mites (Haemolaelaps glasgowi, Laelaps jettmari, Eulaelaps shanghaiensis), and 2 species of fleas (Monopsyllus anisus, Leptopsylla segnis) collected from nests of HFRS virus-infected Apodemus agrarius, whereas HFRS virus was not recovered from Gamasidea mites and fleas collected from nests of uninfected Apodemus agrarius. It was thus confirmed that HFRS is a disease of animal origin with natural foci of infection. Experimental studies demonstrated that positive results of virus isolation were obtained from originally healthy population of Monopsylla anisus, Leptopsylla segnis and Haemolaelaps glasgowi 24-48 hours after they had sucked HFRS virus suspension, while positive results of virus isolation were still obtained from Haemolaelaps glasgowi but not from 2 species of fleas 7 days after they had sucked HFRS sirus suspension. It was confirmed that Monopsylla anisus and Leptopsylla segnis cannot propagate HFRS, and therefore their transmission would be mechanical. On the contrary, Haemolaelaps glasgowi might play the role of biological vector.
Dong
B
B
D000818:Animals; D001096:Arachnid Vectors; D006476:Orthohantavirus / Q000302:isolation & purification*; D006480:Hemorrhagic Fever with Renal Syndrome / Q000635:transmission*; D007303:Insect Vectors; D051379:Mice; D008925:Mites / Q000382:microbiology*; D005423:Siphonaptera / Q000382:microbiology*