Etiological analysis of influenza-like cases in Taizhou City, Zhejiang Province from 2013 to 2022

Journal Title: Shanghai Journal of Preventive Medicine - Year 2024, Vol 36, Issue 4

Abstract

Objective To analyze the etiological results of influenza-like case surveillance in Taizhou, Zhejiang Province from 2013 to 2022, to timely understand the epidemic trend of influenza viruses and the change rule of dominant virus strains, and to provide reference for the prevention and control of influenza in this region.Methods Influenza virus nucleic acid was detected by real-time PCR in 24 183 influenza-like cases.Results The positive rate of influenza virus in 24 183 samples was 18.43%, the highest positive type was seasonal H3 (37.34%). There was no a significant difference in positive rate between different genders (χ2=0.148, P=0.701). There was significant difference in the positive rate among different age groups (χ2=496.626, P<0.001), and the highest positive rate was found in the 25‒59 age group (22.56%). The positive rate in different years was statistically significant (χ2=1 670.922, P<0.001). The positive rate from 2013 to 2019 showed an upward trend (χ2=30.559, P<0.001). The lowest positive rate was in 2020 (0.04%), and the positive rate from 2021 to 2022 showed an upward trend (χ2=304.465, P<0.001). The dominant strains were different in different monitoring years. There was a significant difference in the positive rate of influenza in different months (χ2=1 652.455, P<0.001), and the peak of influenza was mainly concentrated in December‒March and July‒August.Conclusion From 2013 to 2022, the positive rate of influenza virus in Taizhou showed a wavy dynamic change, and the dominant strains were different in different years, presenting alternate epidemic characteristics. It is necessary to strengthen the etiological surveillance of influenza virus and improve the prevention and control measures with influenza vaccine.

Authors and Affiliations

WANG Ziyi,SHEN Weiwei,WANG Hongzhu,WENG Jian,

Keywords

Related Articles

Epidemiologic and etiologic characteristics of foodborne diseases in Minhang, Shanghai 2016‒2020

ObjectiveTo learn the epidemiological features of foodborne diseases, and to provide scientific basis for disease control.MethodsThe monitoring data of foodborne diseases in Minhang from 2016 to 2020 were analyzed. Sto...

The effect of ozone exposure on asthma and the potential mechanisms

Near-surface ozone is a profoundly reactive and highly oxidizing gas and one of the critical respiratory toxicants. Numerous epidemiological investigations have indicated that asthmatic individuals are the vulnerable gro...

Investigation of a Mycoplasma pneumoniae outbreak in a welfare institution

Objective To carry out an epidemiological analysis on an outbreak of Mycoplasma pneumoniae infection at a welfare institution to provide a theoretical basis for the corresponding prevention and control measures.Methods U...

Investigation and management of an anaphylactic shock case after inoculation with COVID-19 vaccine

Anaphylactic shock is a serious and rare adverse reaction, which can be life-threatening if not treated in time. COVID-19 vaccine is a newly marketed vaccine, and people pay high attention to its adverse reactions. T...

Application and comparison of three risk assessment methods for occupational health risk assessment of dust in a sanitary ceramic product manufacturing enterprise

Objective Three methods were applied to conduct occupational health risk assessment for the working positions exposed to silicon dusts in a sanitary ceramic manufacturing factory, and the evaluation results were compare...

Download PDF file
  • EP ID EP742024
  • DOI -
  • Views 38
  • Downloads 0

How To Cite

WANG Ziyi, SHEN Weiwei, WANG Hongzhu, WENG Jian, (2024). Etiological analysis of influenza-like cases in Taizhou City, Zhejiang Province from 2013 to 2022. Shanghai Journal of Preventive Medicine, 36(4), -. https://europub.co.uk/articles/-A-742024