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目的:了解近年来流感病毒分离株及人群血清中流感抗体水平监测情况,分析流感流行株与人群流感抗体的关系。方法:采集国家级哨点医院病人咽拭子,分离培养流感病毒流行株;收集不同年龄组人群血清150份,采用微量血球凝集抑制试验法检测流感抗体。结果:分离流感病毒流行优势株为:H1N1、H3N2“O”、Yamagata“B”、Victoria“B”;各优势株人群抗体阳性率分别为:7.3%、66.0%、31.3%、73.3%,其中以甲3“O”和乙“Yamagata”最高。结论:人群中流感病毒流行株与健康人群血清中流感抗体具有一定相关性。
OBJECTIVE: To understand the status of influenza antibody in sera of influenza virus isolates and people in recent years, and to analyze the relationship between influenza strains and influenza antibodies in the population. Methods: Throat swab was collected from the national sentinel hospital and influenza virus was isolated and cultured. 150 serum samples from different age groups were collected. Influenza antibody was detected by microagglutination inhibition test. Results: The prevalences of influenza viruses isolates were H1N1, H3N2 “O ”, Yamagata “B ” and Victoria “B ”. The positive rates of antibodies in the dominant strains were 7.3%, 66.0%, 31.3 %, 73.3%, of which A 3 “O ” and B “Yamagata ” the highest. Conclusion: The prevalence of influenza antibodies in the population is correlated with that of healthy people.