上海预防医学2025，Vol.37Issue(7)：606-610,5.DOI:10.19428/j.cnki.sjpm.2025.24748
2015-2023监测年上海市宝山区某哨点医院流感样病例流感病毒感染情况
Influenza virus infection of influenza-like illness at a sentinel hospital in Baoshan District of Shanghai from the monitoring year of 2015 to 2023
摘要
Abstract
[Objective]To investigate the influenza virus infection status of influenza-like illness(ILI)at a sentinel hospital in Baoshan District of Shanghai,to explore the seasonal patterns of influenza,so as to provide a scientific basis for influenza prevention and control in Baoshan District of Shanghai.[Methods]Surveillance data and pathogenic testing results of ILI from the monitoring year of 2015 to 2023 were collected from the sentinel hospital to describe the seasonal epidemic characteristics of influenza in this district.[Results]The proportion of ILI visits to sentinel hospital in Baoshan District of Shanghai showed an upward trend from 2015 to 2023(Z=2.598,P=0.09).The positive rate of influenza virus in ILI was 20.43%(1 761/8 621),of which 14.17%were positive for influenza A virus,including 8.43%for influenza A/H3N2 and 5.74%for influenza A/H1N1.The positive rate of influenza B virus was 6.25%,of which the positive detection rate of influenza B/Victoria virus was 5.35%,while that of influenza B/Yamagata virus was 0.90%.Influenza B/Yamagata virus was not detected in 2019-2023.The highest positivity rate was observed in the 5-<15 years age group(25.57%).The positive rate of ILI was lower in males(19.90%)than that in females(20.90%).There were three patterns of influenza epidemic in the district:with year-round circulation in 2016-2017 and 2021-2022;with bimodal peaks in 2015-2016,2017-2018 and 2022-2023;and with one peak in 2018-2019 and 2019-2020.The positive rate of influenza virus exhibited seasonal variations,with influenza A virus predominated in summer and autumn.However,influenza B virus showed an increase in spring and winter.[Conclusion]The influenza epidemic in Baoshan District,Shanghai exhibits diverse patterns with heterogeneous epidemiological characteristics across different age groups and seasons.Notably,children and adolescents aged 5-<15 years constitute the key target population for influenza prevention and control.Enhanced surveillance and targeted control measures against influenza A/H3N2 lineage viruses are particularly warranted during summer and autumn seasons.关键词
流感/流感样病例/甲型流感/乙型流感/哨点监测Key words
influenza/influenza-like illness/influenza A/influenza B/sentinel surveillance分类
医药卫生引用本文复制引用
胡永迪,窦文霞,向伦辉,高雅,刘效峰,何凡..2015-2023监测年上海市宝山区某哨点医院流感样病例流感病毒感染情况[J].上海预防医学,2025,37(7):606-610,5.基金项目
上海市加强公共卫生体系建设三年行动计划(2023-2025年)重点学科项目(GWVI-11.1-06) （2023-2025年）
上海市宝山区科学技术委员会2024年度区级医学卫生项目(2024-E-02) （2024-E-02）
