目的了解新疆维吾尔自治区乌苏市法定传染病的流行规律及变化趋势。方法采用描述流行病学方法对乌苏市2006-2009年传染病疫情监测资料进行统计分析。结果 4年间乌苏市无甲类传染病报告,报告乙、丙类传染病共18种6739例,年均发病率为783.00/10万,报告死亡病例21例,年均病死率为3.12‰。居乙类传染病前5位的病种依次为病毒性肝炎、肺结核、细菌性痢疾、甲型H1N1流感、梅毒,占乙类传染病发病总数的97.40%。居丙类传染病前3位的病种依次为其他感染性腹泻、流行性腮腺炎、手足口病,占丙类传染病总数的88.88%。结论 4年间传染病发病率总体呈上升趋势(Cochran Armitage趋势检验χ2=216.14,P<0.01),但除去手足口病和甲型H1N1流感这两种新纳入法定传染病管理疾病后,4年间传染病发病率总体上没有明显增减趋势(χ2=1.17,P>0.05)。乙类中的肠道传染病、血源及性传播传染病发病率下降,呼吸道传染病以及丙类传染病有不同程度上升。主要病种发病位次发生一定的变化,病毒性肝炎逐渐退出首位甚至前3位,肺结核、甲型H1N1流感、手足口病、其他感染性腹泻、流行性腮腺炎、梅毒等是近年来威胁乌苏市人群健康的主要传染病,应作为今后防制工作的重点。 Objective To understand the prevalence and legal tendency of notifiable infectious diseases in Wusu City, Xinjiang Uygur Autonomous Region. Methods Descriptive epidemiological methods were used to analyze the surveillance data of infectious diseases in Wusu City from 2006 to 2009. Results There was no report of Class A infectious diseases in Wusu City in the past 4 years. There were 18 kinds and 6739 cases of B and C infectious diseases with an average annual incidence of 783.00 / 100 thousand. Twenty-one deaths were reported, with an average annual mortality of 3.12 ‰. The top 5 infectious diseases in category B were viral hepatitis, tuberculosis, bacillary dysentery, type A H1N1 influenza and syphilis, accounting for 97.40% of the total number of type B infectious diseases. The top 3 diseases of Category C infectious diseases were followed by other infectious diarrhea, mumps and hand-foot-mouth disease, accounting for 88.88% of the total number of Category C infectious diseases. Conclusions The prevalence of infectious diseases is generally on the rise over the past four years (Cochran Armitage trend test χ2 = 216.14, P <0.01). However, two new cases of HFMD and H1N1 influenza are included in the statutory case of infectious disease management, Disease incidence overall no significant increase trend (χ2 = 1.17, P> 0.05). The incidences of intestinal infectious diseases, blood-borne and sexually transmitted infections in categories B and B, as well as infectious diseases of respiratory tract and C-type infectious diseases have risen to varying degrees. The incidence of major diseases occurred a certain degree of change, viral hepatitis gradually withdraw from the top or even the first three, tuberculosis, influenza A H1N1 influenza, hand-foot-mouth disease, other infectious diarrhea, mumps and syphilis are threats to Ukraine The main infectious diseases of the healthy population in the city of Su should be the focus of prevention and control work in the future.