Analysis on influenza-like illness and etiological surveillance in Zhenjiang, Jiangsu, 2013-2020

Objective  To understand the epidemiological and etiological characteristics of influenza-like illness (ILI) in Zhenjiang, Jiangsu province, during 2013—2020, and provide scientific basis for the prevention and control of influenza. Methods  ILI surveillance system consisting of influenza surveillance sentinel hospitals and influenza laboratory network in Zhenjiang was used to collect the surveillance data of ILI cases and pathogens in Zhenjiang from 2013 to 2020 for a statistical analysis. Results  A total of 207 252 ILI cases were reported by sentinel hospitals in Zhenjiang during 2013—2020, and the average ILI% during 2013—2020 was 3.50%, showing an increase trend (χ2trend=30554.00, P Conclusion  It is necessary to strengthen the prevention and control of influenza according to the epidemiological characteristics of ILI and influenza virus in Zhenjiang. The prevention and control measures for COVID-19 can be used for reference.