摘要
目的：广泛调查我国动物莱姆病分布情况。方法：血清流行病学和病原学研究。结果：１９８７～１９９７年间，牛、羊、狗、野兔和８种野鼠有莱姆病的感染存在，其中牛、羊、狗和野鼠的感染率分别为１８．１８％～３２．６１％、１７．１２％～６１．２１％、３８．５％～６０．００％和４１．１８％～８６．０５％；从黑线姬鼠和白腹巨鼠的胎鼠分离到莱姆病螺旋体，证实莱姆病螺旋体可通过胎盘垂直传播。９种蜱的中肠携带莱姆病螺旋体，带菌率以全沟硬蜱、二棘血蜱和粒形硬蜱为高，分别为２０．００％～４５．００％、１６．００％～４０．００％和２４．００％。从华南兔、８种野鼠和８种蜱分离出１２８株莱姆病螺旋体。证实黑线姬鼠和棕背是中国莱姆病螺旋体的重要储存宿主；多种蜱的中肠内携带莱姆病螺旋体，我国北方林区莱姆病螺旋体的主要生物媒介是全沟硬蜱，南方林区二棘血蜱和粒形硬蜱是重要的生物媒介。
From 1987 to 1997,Lyme disease in animals was investigated in 20 provinces,cities and autonomous regions of China.Seroepidemiological findings indicated that some cattle,sheep,dogs and rats from forest areas had a high antibody titer for Borrelia burgdorferi sensu lato (B.b.s.l.) (B31) with positive rate 18.18%～32.61%,17.21%～61.21%,38.5%～60.00% and 41.18%￣86.05%.With BSK medium,128 strains of B.b.s.l. were isolated from 8 species of rodents,8 species of ticks and Caprolagus sinensis. Vertical transmission of B.b.s.l. was confirmed with B.b.s.l. isolated from foetuses of Apodemus agrarius and Rattus edwardsi.The results showed that Lyme disease spirochetes,B.b.s.l.,might be naturally maintained in an enzootic cycle by transplacental transmission.20.00% to 45.00% adult Ixodes persulcatus,16.00% to 40.00% adult Haemaphysalis bispinosis and 24.00% adult Ixodes granulatus contained spirochetes as determined by direct immunofluorescence.Apodemus agrarius and Clethrionomys rufocanus might serve as major reservoir hosts for B.b.s.l. in China.Ixodes persulcatus played a leading role in the transmission of B.b.s.l. to human in northern region of China.Haemaphysalis bispinosis and Ixodes granulatus were proved to be important vectors of B.b.s.l.in the southern area of China.
出处
《中国媒介生物学及控制杂志》
CAS
CSCD
1998年第5期366-370,共5页
Chinese Journal of Vector Biology and Control
关键词
莱姆病
莱姆病螺旋体
全沟硬蜱
黑线姬鼠
Lyme disease Borrelia burgdorferi sensu lato Ixodes persulcatus Apodemus agrarius Clethrionomys rufocanus
