Analysis on epidemlological features of bacillary dysentery in the City of Anyang,Henan Province from 1990 to 2005

Objective The present study was conducted to probe into the epidemiological features of bacillary dysentery in the City of Anyang from 1990 tO 2005 and provide scientific basis for prevention and control of bacillary dysentery．Methods Descriptive epidemiological analysis method was adopted．Results From l990 to 2005，the highest yearly incidence rate of bacillary dysentery was 139.12/lakh，and the lowest one was 36.34/lakh，The incidence rate decreased year by year and decreased 70.00％ in 2005 compared to that of 1990．There was significant seasonal feature in the incidence of bacillary dysentery，and the incidence peak was from June to August．The epidemic mainly focused in rural-urban fringe zone．And water source contamination was a key factor in dysentery outbreak．Conclusion Insulation from sources of infection，control of water source contamination，cultivation of good individual sanitation habit and reinforcement in control of epidemic situation in summer and autumn Can effectively decrease the incidence rate of bacillary dysentery．