Evidence map›Paper›PMID 33910509›Full record

ArticleBMC pediatrics2021

Effect of COVID-19 on childhood Mycoplasma pneumoniae infection in Chengdu, China.

Ying Zhang, Yijie Huang, Tao Ai, Jun Luo, Hanmin Liu

Open access · goldAbstract read
In one paragraph

Article in BMC pediatrics, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers.

0numbers the graph read from it
0cells of the map it votes in
38citing papers in PubMed
6.0field-weighted citation impact, top 3% 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

38 citing papers in PubMed, 50 citations in OpenAlex.

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  12. Seroepidemiological survey ofFrontiers in pediatrics · 2025
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  13. Positive rates ofFrontiers in microbiology · 2025
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  14. Epidemic features and megagenomic analysis of childhoodEmerging microbes & infections · 2024
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  15. The epidemic characteristics ofMicrobiology spectrum · 2024
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  16. An exceptionally large wave ofTranslational pediatrics · 2024
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  17. Epidemiologic trends and changes in humoral immunity and lymphocyte subsets levels among hospitalized children with Mycoplasma pneumoniae infection during 2019-2023.European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology · 2024
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  18. Article
  19. Comparison of Mycoplasma pneumoniae infection in children admitted with community acquired pneumonia before and during the COVID-19 pandemic: a retrospective study at a tertiary hospital of southwest China.European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology · 2024
    Article
  20. Article
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

5 authors at 3 institutions in 1 country.

Ying Zhang *Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), West China Second University Hospital, Ministry of Education, Sichuan University, No.20 section3 South Renmin Road, Sichuan Province, 610041, Chengdu, China.
Yijie Huang *Children respiratory department,Chengdu Women's and Children's Central Hospital, School of Medicine, University of Electronic Science and Technology of China, 611731, Chengdu, China.
Tao AiChildren respiratory department,Chengdu Women's and Children's Central Hospital, School of Medicine, University of Electronic Science and Technology of China, 611731, Chengdu, China.
Jun LuoChildren respiratory department,Chengdu Women's and Children's Central Hospital, School of Medicine, University of Electronic Science and Technology of China, 611731, Chengdu, China.
Hanmin LiuKey Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), West China Second University Hospital, Ministry of Education, Sichuan University, No.20 section3 South Renmin Road, Sichuan Province, 610041, Chengdu, China. liuhm@scu.edu.cn.
University of Electronic Science and Technology of China · CNChengdu Women's and Children's Central Hospital · CNSichuan University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundFollowing the outbreak of the COVID-19 pandemic, a change in the incidence and transmission of respiratory pathogens was observed. Here, we retrospectively analyzed the impact of COVID-19 on the epidemiologic characteristics of Mycoplasma pneumoniae infection among children in Chengdu, one of the largest cities of western China.

methodM. pneumoniae infection was diagnosed in 33,345 pediatric patients with respiratory symptoms at the Chengdu Women's & Children's Central Hospital between January 2017 and December 2020, based on a serum antibody titer of ≥1:160 measured by the passive agglutination assay. Differences in infection rates were examined by sex, age, and temporal distribution.

resultsTwo epidemic outbreaks occurred between October-December 2017 and April-December 2019, and two infection peaks were detected in the second and fourth quarters of 2017, 2018, and 2019. Due to the public health response to COVID-19, the number of positive M. pneumoniae cases significantly decreased in the second quarter of 2020. The number of M. pneumoniae infection among children aged 3-6 years was higher than that in other age groups.

conclusionsPreschool children are more susceptible to M. pneumoniae infection and close contact appears to be the predominant factor favoring pathogen transmission. The public health response to COVID-19 can effectively control the transmission of M. pneumoniae.

Indexed as

COVID-19Pneumonia, MycoplasmaChildChild, PreschoolChinaFemaleHumansInfantMycoplasma pneumoniaePandemicsRetrospective StudiesSARS-CoV-2ChildrenCOVID-19 pandemicMycoplasma pneumoniaeWestern China

Identifiers

PMID33910509
PMCPMC8079841
OpenAlexW3131948868

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.