关键词: 钩端螺旋体病-流域, 稻田型, 比较分析

Abstract: Objective:The epidemical features of rice-field pattern leptospirosis in different valleys of Henan province were studied so that the corresponding preventive method were draw up.Method:Cross sectional study, isolation of pathgen and sera examination were adopted.Results:1.There was only rice field pattern leptospirosis in Huaihe river valley at present and there were three pattern of leptospirosis in Huanghe river valley such as rice field pattern leptospirosis,rain-rice field pattern leptospirosis and flood-rice field pattern leptospirosis. 2.The epidemical areas of leptospirosis in Huaihe river valley mainly limited hilly areas,and in Huanghe river valley mainly occurred in plain areas which were gradually expanding. 3. The Icterohaemorrhagiae group lai serovar was major serogroup and serovar in patients and the reservoir animal Apodemus agrarius. Apodemus agrarius was the principal infection source of leptospirosis. 4.Economic foci had been found in Huaihe river valley, and natural foci was confirmed recently.North to Huanghe river valley only existed natural infection foci. Conclusion.By reason of difference of climate and environment.,there were any different epidemic features besides many similar epidemic features in Huaihe and Huanghe river valley. Accordingly the correspodingly preventive method should be adopted.