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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H1N1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 epidemiological characteristics of influenza in Guangxi and to evaluate the method of influenza surveillance and provide a scientific basis for the prevention and treatment of influenza. Methods Surveillance data of influenza-like cases, influenza outbreak surveillance data and laboratory etiological monitoring data of sentinel hospitals in Guangxi from 2004 to 2007 were analyzed. Results The average number of influenza-like illness cases monitored in the hospital from 2004 to 2005 was 291.72 cases per week, with a mean of 18.39%. The average number of influenza-like illness cases monitored in the hospital from 2005 to 2006 was 158.59 cases per week, with a mean of 8.16% The average number of flu-like cases in hospitals was 213.45 cases per week, and the percentage of visits was 9.21%. From 2004 to 2005, 280 samples of influenza-like cases were detected and 15 strains were isolated, the positive rate was 5.36%, including 13 strains of H1N1 subtype (86.67%) and 2 strains of H3N2 subtype (13.33%); There were 3115 influenza-like cases and 381 isolates were isolated. The positive rate was 12.23%. Among them, 40 strains were identified as H1N1 (10.50%), 115 (30.18%) were H3N2 subtypes and 226 (59.32%) were B strains. There were 2815 samples of influenza-like illness detected in 2006-2007, of which 213 strains were isolated. The positive rate was 7.57%. Among them, 150 strains were H1N1 subtype (70.41%), 7 strains were H3N2 subtype (3.3% 26.29%) .Conclusion Influenza surveillance should focus on the emergence of new influenza strains, and strengthen the monitoring of school outbreaks.New sensitive new integrated monitoring methods and means to be explored.