Evidence map›Paper›PMID 32594933›Full record

ArticleEpidemiology and infection2020

Epidemiological and genetic characteristics of influenza virus and the effects of air pollution on laboratory-confirmed influenza cases in Hulunbuir, China, from 2010 to 2019.

Bing Lu, Yingchen Wang, Zhansong Zhu, Zhe Zhang, Tuo Dong, Falong Li, Ya Gao, Xiqiao Du, Zhangyi Qu

Open access · goldAbstract read
In one paragraph

Article in Epidemiology and infection, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed, 1 pooled it
3.2field-weighted citation impact, top 7% of its field
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

9 citing papers in PubMed, 1 synthesis or guideline pooled it, 32 citations in OpenAlex.

  1. Pooled it
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  7. Impact of PMEnvironmental science and pollution research international · 2023
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors at 2 institutions in 1 country.

Bing LuDepartment of Microbiology, Public Health College, Harbin Medical University, Harbin, Heilongjiang, China.
Yingchen WangDepartment of Microbiology, Public Health College, Harbin Medical University, Harbin, Heilongjiang, China.
Zhansong ZhuHulunbuir Center for Disease Control and Prevention, Hulunbuir, China.
Zhe ZhangDepartment of Microbiology, Public Health College, Harbin Medical University, Harbin, Heilongjiang, China.
Tuo DongDepartment of Microbiology, Public Health College, Harbin Medical University, Harbin, Heilongjiang, China.
Falong LiDepartment of Microbiology, Public Health College, Harbin Medical University, Harbin, Heilongjiang, China.
Ya GaoDepartment of Microbiology, Public Health College, Harbin Medical University, Harbin, Heilongjiang, China.
Xiqiao DuDepartment of Microbiology, Public Health College, Harbin Medical University, Harbin, Heilongjiang, China.
Zhangyi QuDepartment of Microbiology, Public Health College, Harbin Medical University, Harbin, Heilongjiang, China.ORCID 0000-0003-4773-0871
Harbin Medical University · CNHulunbuir University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveA continuous survey on influenza was conducted in Hulunbuir, China from January 2010 to May 2019 to reveal epidemiological, microbiological and air pollutants associated with laboratory-confirmed influenza cases.

methodsInfluenza-like illness and severe acute respiratory infection subjects were enrolled from a sentinel hospital in Hulunbuir during the study period for epidemiological and virological investigation. The association between air pollutants and influenza-positivity rate was assessed by a generalised additive model.

resultsOf 4667 specimens, 550 (11.8%) were tested positive for influenza. The influenza-positivity was highest in the age groups of 5-14 years, 50-69 years and ⩾70 years. We found that the effect of particulate matter ⩽2.5 μm (PM2.5) concentrations on the influenza-positivity rate was statistically significant, particularly on day lag-4 and lag-5. Genetic characterisations showed that (H1N1) pdm09 strains belonged to subclade 6B.1 and that influenza B isolates belonged to subclade 1A-3Del, with significant substitutions in the haemagglutinin and neuraminidase proteins compared with those in the WHO-recommended vaccine strains.

conclusionsElderly individuals and school-age children were at high risk for influenza infection. PM2.5 concentrations showed significant effects on influenza-positivity rate in Hulunbuir, which could be considered in local influenza prevention strategies.

Indexed as

AdolescentAdultAgedAir PollutionChildChild, PreschoolChinaFemaleHumansInfluenza A Virus, H1N1 SubtypeInfluenza, HumanMaleMiddle AgedYoung Adultair pollutiongeneralised additive model (GAM)influenzaseasonality

Identifiers

PMID32594933
PMCPMC7424604
OpenAlexW3037319188

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.