Epidemiological analysis of influenza in Jiading District， Shanghai， 2013‒2023
ObjectiveTo analyze the epidemiological characteristics and trends of influenza‑like illness (ILI) in Jiading District from 2013 to 2023, to explore the prevalence patterns, so as to provide a scientific basis for a better prevention and control of influenza.MethodsData of ILI cases, pathogenetic su...
Saved in:
| Main Authors: | , , , , , , , |
|---|---|
| Format: | Article |
| Language: | zho |
| Published: |
Shanghai Preventive Medicine Association
2024-12-01
|
| Series: | Shanghai yufang yixue |
| Subjects: | |
| Online Access: | http://www.sjpm.org.cn/article/doi/10.19428/j.cnki.sjpm.2024.24229?viewType=HTML |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850042516548616192 |
|---|---|
| author | CHEN Wanqi MA Feifei WANG Guanghe WANG Haoquan DENG Senmiao MAO Yuhua SUN Pan CHEN Weixin |
| author_facet | CHEN Wanqi MA Feifei WANG Guanghe WANG Haoquan DENG Senmiao MAO Yuhua SUN Pan CHEN Weixin |
| author_sort | CHEN Wanqi |
| collection | DOAJ |
| description | ObjectiveTo analyze the epidemiological characteristics and trends of influenza‑like illness (ILI) in Jiading District from 2013 to 2023, to explore the prevalence patterns, so as to provide a scientific basis for a better prevention and control of influenza.MethodsData of ILI cases, pathogenetic surveillance results and pathogen detection data from influenza surveillance network laboratories in Jiading District from 2013 to 2023 were collected for statistical analysis.ResultsFrom 2013 to 2023, the overall proportion of medical visits for ILI cases in Jiading District was 2.70%. ILI cases were mainly distributed in the age group of ≥25 years, with a seasonal prevalence characteristic, mainly concentrated in the winter and spring, with an occasional small peak in the summer. A total of 12 423 specimens were tested for pathogenetic surveillance and monitoring, 3 651 of which were tested positive for nucleic acid detection, with a positive rate of 29.39%. The dominant strain was influenza A (H3N2) virus, accounting for 55.05%. There were statistical significant differences in the positive detection rates by different streets and townships(χ2=24.73，P<0.05）. The influenza network laboratory isolated and cultured influenza viruses from 3 154 nucleic acid‑positive samples sent by national influenza sentinel surveillance hospitals using 2methodsMadin‑Darby canine kidney (MDCK) cells and specific pathogen free (SPF) chicken embryos, respectively, with a total isolation rate of 39.51%, and the isolation rate of MDCK cells (35.45%) was higher than that of SPF chicken embryos (5.36%). From 2013 to 2023, a total of 14 ILI outbreaks were reported in Jiading District, mainly in primary schools, kindergartens and secondary schools.ConclusionInfluenza in Jiading District, Shanghai, is mainly prevalent in the winter and spring, with different subtypes of influenza viruses alternating or co⁃circulating in different monitoring year. It is recommended to promote influenza vaccination, further improve influenza prevention and control measures, enhance health promotion to the age group of ≥25 years in winter and spring, and strengthen surveillance and monitoring on ILI outbreaks in collective units such as primary schools and childcare institutions, so as to reduce the disease burden. |
| format | Article |
| id | doaj-art-db56a07341c140d285db3850157a0ec4 |
| institution | DOAJ |
| issn | 1004-9231 |
| language | zho |
| publishDate | 2024-12-01 |
| publisher | Shanghai Preventive Medicine Association |
| record_format | Article |
| series | Shanghai yufang yixue |
| spelling | doaj-art-db56a07341c140d285db3850157a0ec42025-08-20T02:55:31ZzhoShanghai Preventive Medicine AssociationShanghai yufang yixue1004-92312024-12-0136121130113610.19428/j.cnki.sjpm.2024.242291004-9231（2024）12-1130-07Epidemiological analysis of influenza in Jiading District， Shanghai， 2013‒2023CHEN Wanqi0MA Feifei1WANG Guanghe2WANG Haoquan3DENG Senmiao4MAO Yuhua5SUN Pan6CHEN Weixin7Jiading District Centre for Disease Control and Prevention, Shanghai 201800, ChinaJiading District Centre for Disease Control and Prevention, Shanghai 201800, ChinaSchool of Public Health, Shanghai Jiao Tong University, Shanghai 200025, China.Jiading District Centre for Disease Control and Prevention, Shanghai 201800, ChinaJiading District Centre for Disease Control and Prevention, Shanghai 201800, ChinaJiading District Centre for Disease Control and Prevention, Shanghai 201800, ChinaJiading District Centre for Disease Control and Prevention, Shanghai 201800, ChinaJiading District Centre for Disease Control and Prevention, Shanghai 201800, ChinaObjectiveTo analyze the epidemiological characteristics and trends of influenza‑like illness (ILI) in Jiading District from 2013 to 2023, to explore the prevalence patterns, so as to provide a scientific basis for a better prevention and control of influenza.MethodsData of ILI cases, pathogenetic surveillance results and pathogen detection data from influenza surveillance network laboratories in Jiading District from 2013 to 2023 were collected for statistical analysis.ResultsFrom 2013 to 2023, the overall proportion of medical visits for ILI cases in Jiading District was 2.70%. ILI cases were mainly distributed in the age group of ≥25 years, with a seasonal prevalence characteristic, mainly concentrated in the winter and spring, with an occasional small peak in the summer. A total of 12 423 specimens were tested for pathogenetic surveillance and monitoring, 3 651 of which were tested positive for nucleic acid detection, with a positive rate of 29.39%. The dominant strain was influenza A (H3N2) virus, accounting for 55.05%. There were statistical significant differences in the positive detection rates by different streets and townships(χ2=24.73，P<0.05）. The influenza network laboratory isolated and cultured influenza viruses from 3 154 nucleic acid‑positive samples sent by national influenza sentinel surveillance hospitals using 2methodsMadin‑Darby canine kidney (MDCK) cells and specific pathogen free (SPF) chicken embryos, respectively, with a total isolation rate of 39.51%, and the isolation rate of MDCK cells (35.45%) was higher than that of SPF chicken embryos (5.36%). From 2013 to 2023, a total of 14 ILI outbreaks were reported in Jiading District, mainly in primary schools, kindergartens and secondary schools.ConclusionInfluenza in Jiading District, Shanghai, is mainly prevalent in the winter and spring, with different subtypes of influenza viruses alternating or co⁃circulating in different monitoring year. It is recommended to promote influenza vaccination, further improve influenza prevention and control measures, enhance health promotion to the age group of ≥25 years in winter and spring, and strengthen surveillance and monitoring on ILI outbreaks in collective units such as primary schools and childcare institutions, so as to reduce the disease burden.http://www.sjpm.org.cn/article/doi/10.19428/j.cnki.sjpm.2024.24229?viewType=HTMLinfluenzainfluenza-like illnessinfluenza virussurveillance and monitoringepidemiological characteristic |
| spellingShingle | CHEN Wanqi MA Feifei WANG Guanghe WANG Haoquan DENG Senmiao MAO Yuhua SUN Pan CHEN Weixin Epidemiological analysis of influenza in Jiading District， Shanghai， 2013‒2023 Shanghai yufang yixue influenza influenza-like illness influenza virus surveillance and monitoring epidemiological characteristic |
| title | Epidemiological analysis of influenza in Jiading District， Shanghai， 2013‒2023 |
| title_full | Epidemiological analysis of influenza in Jiading District， Shanghai， 2013‒2023 |
| title_fullStr | Epidemiological analysis of influenza in Jiading District， Shanghai， 2013‒2023 |
| title_full_unstemmed | Epidemiological analysis of influenza in Jiading District， Shanghai， 2013‒2023 |
| title_short | Epidemiological analysis of influenza in Jiading District， Shanghai， 2013‒2023 |
| title_sort | epidemiological analysis of influenza in jiading district shanghai 2013 2023 |
| topic | influenza influenza-like illness influenza virus surveillance and monitoring epidemiological characteristic |
| url | http://www.sjpm.org.cn/article/doi/10.19428/j.cnki.sjpm.2024.24229?viewType=HTML |
| work_keys_str_mv | AT chenwanqi epidemiologicalanalysisofinfluenzainjiadingdistrictshanghai20132023 AT mafeifei epidemiologicalanalysisofinfluenzainjiadingdistrictshanghai20132023 AT wangguanghe epidemiologicalanalysisofinfluenzainjiadingdistrictshanghai20132023 AT wanghaoquan epidemiologicalanalysisofinfluenzainjiadingdistrictshanghai20132023 AT dengsenmiao epidemiologicalanalysisofinfluenzainjiadingdistrictshanghai20132023 AT maoyuhua epidemiologicalanalysisofinfluenzainjiadingdistrictshanghai20132023 AT sunpan epidemiologicalanalysisofinfluenzainjiadingdistrictshanghai20132023 AT chenweixin epidemiologicalanalysisofinfluenzainjiadingdistrictshanghai20132023 |