Objective To study the change of serotype and the epidemiological characteristics of Shigella in Beijing from 2009 to 2011. Methods Totally 788 Shigella strains isolated from diarrhea patients in Beijing from 2009 to 2011 were sero-typed. Results Of all the 788 Shigella isolates 597 were Shigella sonnei ( accounting for 75. 76% ), and 188 were Shigella flex-neri ( accounting for 23. 86% ). The highest incidence was found in August and September, and the ages of the patients ranged mainly from 21 to 30 years. Conclusion The epidemic strains during the three years in Beijing are Shigella flexneri and Shigella Sonnei, and Shigella Sonnei is the dominant serotype.%目的 分析2009-2011年北京地区志贺菌的菌型分布及流行病学特征.方法 收集2009-2011年痢疾监测中分离到的志贺菌788株进行血清分型.结果 788株志贺菌中宋内志贺菌597株(占75.76%),福氏志贺菌188株(占23.86%).检出高峰在8、9月份,年龄段以21～30岁为主.结论 近三年北京市志贺菌流行菌型为福氏志贺菌和宋内志贺菌,其中优势菌型为宋内志贺菌.今后痢疾防控应以夏秋季为主.
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