Investigation on influenza surveillance, disease burden among school students in Jinan City/

YU Qiuyan; GAO Shang; SHAN Zhaoxia; CHEN Yue; SUN Fang; WANG Kegang; LI Yuxuan; XU Shuhui

doi:10.16835/j.cnki.1000-9817.2021.12.025

Volume 42 Issue 12

Dec. 2021

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YU Qiuyan, GAO Shang, SHAN Zhaoxia, CHEN Yue, SUN Fang, WANG Kegang, LI Yuxuan, XU Shuhui. Investigation on influenza surveillance, disease burden among school students in Jinan City/[J]. CHINESE JOURNAL OF SCHOOL HEALTH, 2021, 42(12): 1863-1866. doi: 10.16835/j.cnki.1000-9817.2021.12.025

Citation:

YU Qiuyan, GAO Shang, SHAN Zhaoxia, CHEN Yue, SUN Fang, WANG Kegang, LI Yuxuan, XU Shuhui. Investigation on influenza surveillance, disease burden among school students in Jinan City/[J]. CHINESE JOURNAL OF SCHOOL HEALTH, 2021, 42(12): 1863-1866. doi: 10.16835/j.cnki.1000-9817.2021.12.025

Citation:

YU Qiuyan, GAO Shang, SHAN Zhaoxia, CHEN Yue, SUN Fang, WANG Kegang, LI Yuxuan, XU Shuhui. Investigation on influenza surveillance, disease burden among school students in Jinan City/[J]. CHINESE JOURNAL OF SCHOOL HEALTH, 2021, 42(12): 1863-1866. doi: 10.16835/j.cnki.1000-9817.2021.12.025

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Investigation on influenza surveillance, disease burden among school students in Jinan City/

doi: 10.16835/j.cnki.1000-9817.2021.12.025

1.
Infectious Disease Control Institute, Jinan Center for Disease Control and Prevention, Jinan(250021), China

Received Date: 2021-03-22
Rev Recd Date: 2021-05-24

Available Online: 2021-12-23

Publish Date: 2021-12-25

Abstract

Abstract

Objective To monitor and analyze the epidemiological characteristics of influenza in schools and understand the disease burden of students, and to provide a scientific reference for instructing the prevention of influenza in schools. Methods A school influenza surveillance sentinel to conduct influenza-like case (ILI) surveillance and outbreak surveillance. Through network, we understood the burden of flu disease among students. Descriptive epidemiology was used to analyze influenza-like case surveillance and questionnaire survey data. Results Surveillance confirmed that from the 42th week of 2019 to the 1st week of 2020, the cumulative reported ILI of 3 school influenza surveillance sites in Jinan accounted for 7.91% (ILI%) of the total number of surveillance personnel during the same period, with the highest ILI% (24.19%) of kindergarten children, ILI% gradually decreased with the increase of grade, and teachers were the lowest. The reporting of ILI was concentrated in the 49th to 52nd week of 2019, during which the reported influenza-like cases accounted for 84.81% of the total number of ILI reported during the surveillance period. Two influenza outbreaks were monitored. The pathogens were H3N2 and B (Victoria). The epidemics mainly occurred in the lower grades of elementary school. A survey of 2 297 students found that 577 people had fever and respiratory symptoms since October 2019. Among them, 85.26% of them went to the hospital, 32.75% of those who used anti-influenza drugs such as oseltamivir, and 64.81% of those who used antibiotics. 42.63% received infusion therapy, 3.99% were hospitalized, and the average cost of inpatients was 6 686 yuan. The sick students were absent from school for an average of 3.77 days, and the parents of the sick children missed work for an average of 4.26 days. Conclusion Surveillance of influenza-like cases in schools is an important way to proactively discover influenza epidemic trends and outbreaks, and to accurately grasp the characteristics of influenza epidemics in schools. The key populations affected by influenza are kindergarten children and lower grades of primary school students. Suffering from influenza has caused a heavy disease burden on students and children in kindergartens, and is also an important factor that causes student absenteeism and parents to miss work.
- Influenza, human,
- Population surveillance,
- Disease,
- Students

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References(15)

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