Evidence map›Paper›PMID 39358703›Full record

ArticleBMC infectious diseases2024

Study of the driving factors of the abnormal influenza A (H3N2) epidemic in 2022 and early predictions in Xiamen, China.

Hansong Zhu, Feifei Qi, Xiaoying Wang, Yanhua Zhang, Fangjingwei Chen, Zhikun Cai, Yuyan Chen, Kaizhi Chen, Hongbin Chen, Zhonghang Xie and 9 more

Erratum issuedAbstract read
In one paragraph

Article in BMC infectious diseases, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 14 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

14 citing papers in PubMed, 1 synthesis or guideline pooled it.

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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

19 authors.

Hansong Zhu *Fujian Provincial Center for Disease Control and Prevention, Fuzhou, Fujian, 350012, China. hszhu33@126.com.
Feifei Qi *School of Public Health, Xi'an Jiaotong University, Xi'an, Shanxi, 710061, China.
Xiaoying Wang *School of Public Health, Xiamen University, Xiamen, 361100, Fujian, China.
Yanhua Zhang *Fujian Provincial Center for Disease Control and Prevention, Fuzhou, Fujian, 350012, China.
Fangjingwei Chen *School of Geographical Sciences School of Carbon Neutrality Future Technology, Fujian Normal University, Fuzhou, Fujian, 350108, China.
Zhikun Cai *Fujian Provincial Center for Disease Control and Prevention, Fuzhou, Fujian, 350012, China.
Yuyan ChenFujian Provincial Judicial Drug Rehabilitation Hospital, Fuzhou, 350007, Fujian, China.
Kaizhi ChenFuzhou University, Fuzhou, Fujian, 350108, China.
Hongbin ChenFujian Provincial Center for Disease Control and Prevention, Fuzhou, Fujian, 350012, China.
Zhonghang XieFujian Provincial Center for Disease Control and Prevention, Fuzhou, Fujian, 350012, China.
Guangmin ChenFujian Provincial Center for Disease Control and Prevention, Fuzhou, Fujian, 350012, China.
Xiaoyuan ZhangFujian University of Traditional Chinese Medicine, Fuzhou, Fujian, 350108, China.
Xu HanFujian University of Traditional Chinese Medicine, Fuzhou, Fujian, 350108, China.
Shenggen WuFujian Provincial Center for Disease Control and Prevention, Fuzhou, Fujian, 350012, China. lxbywstj@126.com.
Si ChenFujian Institute of Meteorological Sciences, Fuzhou, Fujian, 350028, China. chensifuzhou@126.com.
Yuying FuFujian Chuanzheng Communications College, Fuzhou, 350007, China. 2021003@fjcpc.edu.cn.
Fei HeSchool of Public Health, Fujian Medical University, Fuzhou, Fujian, 350011, China. i.fei.he@fjmu.edu.cn.
Yuwei WengFujian Provincial Center for Disease Control and Prevention, Fuzhou, Fujian, 350012, China. wengywfjcdc@aliyun.com.
Jianming OuFujian Provincial Center for Disease Control and Prevention, Fuzhou, Fujian, 350012, China. ojmfj@vip.sina.com.

Funding

Major scientific research projects for middle-aged and young people 2021ZQNZD006Natural Science Foundation of Fujian Province 2020J01094Natural Science Foundation of Fujian Province 2021J01350Natural Science Foundation of Fujian Province 2023J01093Natural Science Foundation of Fujian Province 2023J01165Natural Science Foundation of Fujian Province 2024J01152Young and Middle-aged Backbone Talents Training Project of Fujian Provincial Health Commission 2021GGA037Youth research projects of Fujian Provincial Health Commission 2021QNA036
6 · The paper itself

Abstract

backgroundInfluenza outbreaks have occurred frequently these years, especially in the summer of 2022 when the number of influenza cases in southern provinces of China increased abnormally. However, the exact evidence of the driving factors involved in the prodrome period is unclear, posing great difficulties for early and accurate prediction in practical work.

methodsIn order to avoid the serious interference of strict prevention and control measures on the analysis of influenza influencing factors during the COVID-19 epidemic period, only the impact of meteorological and air quality factors on influenza A (H3N2) in Xiamen during the non coronavirus disease 2019 (COVID-19) period (2013/01/01-202/01/24) was analyzed using the distribution lag non-linear model. Phylogenetic analysis of influenza A (H3N2) during 2013-2022 was also performed. Influenza A (H3N2) was predicted through a random forest and long short-term memory (RF-LSTM) model via actual and forecasted meteorological and influenza A (H3N2) values.

resultsTwenty nine thousand four hundred thirty five influenza cases were reported in 2022, accounting for 58.54% of the total cases during 2013-2022. A (H3N2) dominated the 2022 summer epidemic season, accounting for 95.60%. The influenza cases in the summer of 2022 accounted for 83.72% of the year and 49.02% of all influenza reported from 2013 to 2022. Among them, the A (H3N2) cases in the summer of 2022 accounted for 83.90% of all A (H3N2) reported from 2013 to 2022. Daily precipitation(20-50 mm), relative humidity (70-78%), low (≤ 3 h) and high (≥ 7 h) sunshine duration, air temperature (≤ 21 °C) and O

conclusionThe extreme weather conditions of sustained low temperature and wet rain may have been important driving factors for the abnormal influenza A (H3N2) epidemic. A low vaccination rate, new mutated strains, and insufficient immune barriers formed by natural infections may have exacerbated this epidemic. Meteorological forecast values can aid in the early prediction of influenza outbreaks. This study can help relevant departments prepare for influenza outbreaks during extreme weather, provide a scientific basis for prevention strategies and risk warnings, better adapt to climate change, and improve public health.

Indexed as

COVID-19Influenza A Virus, H3N2 SubtypeInfluenza, HumanChinaEpidemicsHumansPhylogenySARS-CoV-2SeasonsAir qualityInfluenzaLSTMMeteorological factorsPhylogenetic analysisRandom forest (RF)

Identifiers

PMID39358703
PMCPMC11446044

What OpenQuestion holds

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LicenceCC BY-NC-ND
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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.