Epidemiological Analysis of Dysentery in Beijing (1990～1997)

The Epidemiological characteristics and group & serotype changes of dysentery in Beijing from 1990 to 1997 were summarized based on the data rpeorted by the 18 District and County Stations for Hygiene and Epidemiological Control. The average annual morbidity rate 258.10 cases per 100,000 persons, was at the lowest level in the past decades, decreased 702% compared with that in 70' and 325% in 80'. But it was still ranked in No. 1 positon of class A and B notifiable infectious diseases by morbidity and proportion. The laboratory test results for Shigella dysentery showed that S.Flexner was predominant group with the propotion of 72.1% and mainly F2a serotype. While the other serotype proportions were very small and showing the decreased trend. The B/D ratio was increased to 3.7 from 1.9 in 80'. The interventions for con-trol of dysentery should be focused on the strength of street food hygiene,floation population con-trol and health education and rational use of antibiotics.