Surveillance of influenza virus infection in children aged between 0 and 14 years old in a traditional Chinese medicine hospital of Beijing from 2023 to 2024
10.11816/cn.ni.2025-240883
- VernacularTitle:2023-2024年北京某中医院0～14岁儿童流感病毒感染监测报告
- Author:
Linlin ZHAO
1
;
Honglin WEN
;
Min LI
;
Fengzhi WANG
;
Meng LI
;
Xiaomeng FENG
;
Jinghua TIAN
Author Information
1. 首都医科大学附属北京中医医院检验科,北京 100010
- Publication Type:Journal Article
- Keywords:
Influenza A virus;
Influenza B virus;
Epidemiological characteristic;
Child;
Respiratory tract infection
- From:
Chinese Journal of Nosocomiology
2025;35(6):914-917
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVE To investigate the characteristics of influenza A and influenza B viruses infections in the children aged between 0 and 14 years old after COVID-19 was downgraded to category B management of infectious diseases.METHODS From Jan.2023 to Feb.2024,a total of 2349 children aged between 0 and 14 years old who were treated in Beijing Hospital of Traditional Chinese Medicine,Capital Medical University due to influenza-like symptoms of infection and received nucleic acid testing for influenza A and influenza B viruses were recruited as the research subjects.The gender and age of the children as well as the seasons were observed by chi-square test.RESULTS Totally 2349 children were included in the study,and the total positive rate of influenza was 49.85％(1171/2349);the positive rate of influenza A virus was 36.36％(854/2349),the positive rate of influenza B virus was 13.92％(327/2349),and the positive rate of the mixed infections of influenza A virus and influenza B virus was 0.43％(10/2349).The positive rate of influenza A of the girls was the highest(44.17％)(x2=8.980,P=0.011)among the children aged less than 5 years old;the positive rate of influenza B of the boys was the highest(17.19％)(x2=8.378,P=0.015)among the children aged between 5 and 10 years old.There was significant difference in the positive rate of influenza A virus among the seasons in 2023 to 2024(x2=268.12,P＜0.001);the prevalence rate was 60.93％in spring,44.40％in autumn,22.01％in winter.There was significant difference in the positive rate of influenza B virus among the seasons in 2023 to 2024(x2=373.16,P＜0.001),and the preva-lence rate was 25.44％in winter.CONCLUSIONS The influenza viruses are prevalent in spring,autumn and winter from 2023 to 2024,and the influenza A is dominant.The positive rate of influenza viruses shows an upward trend among the children aged between 0 and 14 years old after the COVID-19 is downgraded to category B management of infectious diseases,with the peak of prevalence lagging behind.
