中国媒介生物学及控制杂志

• 论著 • 上一篇    下一篇

云南鼠类染带钩端螺旋体群型及地理分布特点

杨文映; 陈明华; 杨向东; 庞敬文; 杜春红   

  1. 云南省流行病防治研究所 大理市下关671000
  • 出版日期:1994-12-20 发布日期:1994-12-20

The Serogroups, Serotypes and Their Geographical Distribution Characteristics of Leptospirae Which Carried by Rat-like Animals in Yunnan

Yang Wen-ying;et al   

  1. Yunnan provincial institute of epidemic disease control and research Dali city 671000
  • Online:1994-12-20 Published:1994-12-20

摘要: 我省1957~1992年在钩体病流行病学调查中获鼠3目5科16属29种27764只,从3目3科9属17种764只中分离出钩体,总阳性率2.75%,但各阶段差异非常显著(P<0.005).定群660株隶属14群,定型306株隶属23型,全省优势鼠及菌型是黄胸鼠之爪哇型,但因地而异:北纬24°30'以南的文山至德宏州等一片为黄胸鼠之爪哇群;24°30'~27°的昆明-楚雄-大理及华坪县一线为黄胸鼠、褐家鼠、大足鼠之犬群渡口型:怒江州为大足鼠之波摩那型;保山坝为大足鼠之犬群和致热群:元江坝为板齿鼠之致热型;27°线以北的绥江县为黑线姬鼠之黄疸出血群赖型。分布特点的形成,与菌群和宿主动物间的倾向性及复杂的地理条件有关。

关键词: 鼠类, 钩端螺旋体, 血清群, 地理分布

Abstract: rat-like animals which belong to 3 orders,5 families, 6 genera,29 species have been examined for leptospirae during epidemiological investigation of leptospirosis from 1957-1992 in Yunnan province,There are 764 rat-like animals which belong to 3 orders, 3 families, 9 genera, 17 species found to be positive for leptospirae,with a total 2.75% mean positive rate but existed very significant difference during variation periods ( p<0.005). 660 strains of leptospirae isolated from them have been identified by serological method belong to 14 serogroups and 23 serotypes. The Rattus flavipectus is the main infecting species of rat-like animal and Javanica.javanica is the main serotype of leptospirae in whole province but varied in different districts: Rattus flavipectus and Javanica is the main infecting species of rat-like animal and main serotype of leptospirae respectively in areas situated in the south of 24° 30'north latitude from Wenshan to Dehong prefecture.Rattus flavipectus,Rattus, Rattus norvegicus and Rattus nitidus are the main infecting animals and Canicola dukou is the main serotype in areas between 24° 30'and 27 north latitude such as Kunming city,Chuxiong. Dali prefecture and Huaping county.Rattus nitidus and pomona is the main infecting animal and serotype of leptospirae respectively in Lujiang prefecture.Rattus nitidus is also the main infecting animal but pyrogenes is the main serogroup of leptospirae in Baoshan basin.As for Yungjiang basin Bandicota indica and pyrogenes is the main infecting animal and serotype of leptospirae respectively,while in the north of 27 north latitude such as Suijiang county,Apodemus agrarius and Icterohaemorrhagiaelai is the main in fecting animal andserotype of leptospirae respectively,The formation of distribution characteristics may be related to the tendency between florae and reservoirs and the geographical conditioms.