广西2004～2007年流行性感冒监测分析

Analysis of influenza surveillance data in Guangxi from 2004 to 2007

目的了解广西流感的流行病学特征，评价流感监测工作方法并为流感防治提供科学依据。方法对广西2004～2007年哨点医院流感样病例监测数据、流感样病例暴发疫情监测数据、实验室病原学监测数据进行分析。结果2004～2005年度监测医院流感样病例每周平均为291．72例，就诊百分比为18．39％；2005～2006年度监测医院流感样病例每周平均为158．59例，就诊百分比为8．16％，2006—2007年度监测医院流感样病例每周平均为213．45例，就诊百分比为9．21％。2004～2005年度检测流感样病例标本280份，分离出15株毒株，阳性率5．36％，其中H1N1亚型13株（86．67％），H3N2亚型2株（13．33％）；2005～2006年度检测流感样病例标本3115份，分离出381株毒株，阳性率12．23％，其中H1N1亚型40株（10．50％），H3N2亚型115株（30．18％），B型为226株（59．32％）。2006～2007年度检测流感样病例标本2815份，分离出213株毒株，阳性率7．57％，其中HIN1亚型150株（70．41％0，H3N2亚型7株（3．3％），B型56株（26-29％）。结论流感监测工作应重点关注新型流感毒株的出现，同时加强学校暴发监测。敏感的新型综合性监测方法与手段有待探索。

Objective To understand the epidemiologic features influenza of in Guangxi and evaluate the influenza surveillance measures. Methods The surveillance data concerning monitoring of hospital influenza-like cases and infections of influenza were analyzed. Results There were 291.72,158.59 and 213.45 influenza-like cases per week in 2004,2005 and 2006 with hosptial attendence rates of 18.93%, 8.16%; and 9.21%. 280 influenza-like samples were tested in 2004 and 15 influenza virus strains were isolated with a positive rate of 5.36%, 13 strains were identified as type H1N1 （86.67%） ,2 strains were identified as H3N2（13.33% ）. 3 115 influenza-like samples were tested in 2005 and 381 influenza virus strains were isolated with a positive rate of 12.23%,40 strains were identified as type H1N1 （86.67%）, 115 strains were identified as H3N2（ 13.33% ） and 226 strains were identified as type B （59.32%）. 2 815 influenza-like samples were tested in 2006 and 213 influenza virus strains were isolated with a positive rate of 7.57%, 150 strains were identified as type H1N1 （70.41%）,7 strains were identified as H3N2（3.3%） and 56 strains were identified as type B（26.29%）. Conclusion The work of monitoring of infulenza be strengthened to control the outbreak of the disease.