安徽省肺出血型钩端螺旋体病北移现象调查与分析

Study on Shift of Pneumorrhagic Leptospirosis in Anhui Province

目的 针对由黄疸出血群和犬群引起的肺出血型钩体病在我省的北移现象进行调查分析。方法 通过现场流行病学、血清学和病原学方法进行调查分析。结果 肺出血型钩体病主要发生在我省Ⅲ型地区的皖南 ,而 80年代以来 ,原本在Ⅲ型地区流行的主要流行菌群—黄疸出血群 ,开始在Ⅰ型地区和Ⅱ型地区出现 ,并于 90年代后造成局部地区肺出血型钩体病的爆发流行 ,病死率高。结论 肺出血型钩体病在我省出现了北移现象 。

Objective To analyze northward shift of pneumorrhagic leptospirosis resulting from icterohaemorrhagic serogroup and canicola serogroup in Anhui province. Methods The methods of epidemiology, etiology and biology were used in the survey. Results pneumorrhagic leptospirosis caused by icterohaemorrhagic serogroup originally occurred in south area of Anhui province (type III area). But since 80s, it began to occurred in type I and type II areas. In late of 90s, local pneumorrhagic leptospirosis outbreaks occurred with high mortality. Conclusions northward shift of pneumorrhagic leptospirosis was confirmed and the serogroup was found in type I and type II areas.