关键词: 鼠形动物, 蚤, 蜱, 革螨, 吸虱, 恙螨, 肾综合征出血热抗原

Abstract:

Objective To make out of ecological habitats of rodents and the infestation level by ectoparasites and carry situation of Hemorrhagic Fever with Renal Syndrome antigen in Zhenjiang port.Methods 60 km bank along the lower reaches of the Yangzi River and 8 places were selected to capture rodents in the 4 ecological circumstances.Brushes were used to collect the insects on rodents' surfaces.IFAT was used to test the HFRS of rodents' lungs.Results 640 mouse-like animals were captured and the captured ratio was 7.41%.They were belonged to 3 orders,4 families,7 genera and 9 species.Apodemus agrarius was the dominant species in the grass and harbor habitats.Rattus norvegicus and Mus musculus were dominant species in the residential areas and storehouse areas.All the reproduction index of Rattus norvegicus,Mus musculus and Crocidure lusiura were above 2.The peak density of rodents ocoured in Much to May.The sex ratio,adult and infant ratio of all rats were diversified.1 619 ectoparasites were captured.They belonged to 4 orders,11 families,19 genera and 28 species.The dominant species of flea,tick,gamasid,polyplax and jigger were Stenoponia shanghaiensis,Haemaphysalis longicornis,Hirstionyssus sunci,Polyplax serrata and Leptotrombidium scutellare.The infestation ratio and index were 50.31% and 2.53.The peak time of ectoparasites on rodents surface was Feb.to May.The second peak time was September.The host of gamasid and polyplax was not particular style and changed widely.The HFRS antigen positive ratio of rodent lung was 2.5%.The positive rat was Apodemus agrarius.Conclusion The rodents and ectoparasites on rodents surface in partial ecological habitats in Zhenjiang port belonged to different species and had obvious phyletic characteristic.The port has epidemic disease foci of Apodemus HFRS.The Apodemus agrarius was the host rodent.

Key words: Rodent, Flea, Tick, Gamasid, Polyplax, Jigger, Hemorrhagic fever with renal syndrome antigen