Evidence map›Paper›PMID 40932845›Full record

ArticleEClinicalMedicine2025

The prevalence and role of human metapneumovirus in respiratory tract infections: a systematic review and meta-analysis of global data.

Pegah Khales, Mohammad Hossein Razizadeh, Saied Ghorbani, Fahimeh Safarnezhad Tameshkel, Hassan Saadati, Masoud Vazirzadeh, Afagh Moattari, Ahmad Tavakoli

Abstract read
In one paragraph

Article in EClinicalMedicine, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing 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

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

  1. Pooled it
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  5. Awareness of human metapneumovirus (hMPV) among healthcare professionals in Libya.The Journal of the Egyptian Public Health Association · 2026
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  6. Review
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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

8 authors.

Pegah KhalesDepartment of Bacteriology and Virology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran.
Mohammad Hossein RazizadehDepartment of Genetics, Genomics and Cancer Sciences, University of Leicester, Leicester, United Kingdom.
Saied GhorbaniDepartment of Bacteriology and Virology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran.
Fahimeh Safarnezhad TameshkelGastrointestinal and Liver Diseases Research Center, Iran University of Medical Sciences, Tehran, Iran.
Hassan SaadatiAddiction and Behavioral Sciences Research Center & Department of Epidemiology and Biostatistics, School of Health, North Khorasan University of Medical Sciences, Bojnurd, Iran.
Masoud VazirzadehDepartment of Biology, South Texas College, McAllen, TX, USA.
Afagh MoattariDepartment of Bacteriology and Virology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran.
Ahmad TavakoliResearch Center of Pediatric Infectious Diseases, Institute of Immunology and Infectious Diseases, Iran University of Medical Sciences, Tehran, Iran.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: Human metapneumovirus (hMPV) is a significant respiratory pathogen, yet its global prevalence and epidemiological patterns remain poorly characterized. This study presents the first comprehensive systematic review and meta-analysis of hMPV prevalence among patients with respiratory tract infections (RTIs), addressing a critical gap in the literature, and clarifying the association between hMPV infection and RTIs. Methods: We conducted a systematic search across PubMed, Scopus, and Web of Science, from 2002 to 2024. Studies reporting hMPV prevalence detected by Polymerase chain reaction-based methods in respiratory samples were included. Data was analyzed using random-effects models, with subgroup analyses by age, region, diagnostic methods, and patient's demographic. The main outcome was hMPV prevalence among patients with RTIs. Findings: The global pooled prevalence of hMPV among 2,236,820 patients with RTIs was 5.3% (95% CI: 5.0%-5.6%). Prevalence was highest in children under 5 years (6.7%) and lowest in adults (2.5%). Lower respiratory infections showed the highest prevalence (8.2%), with bronchiolitis (7.0%) and pneumonia (5.5%) being prominent. Inpatients exhibited a significantly higher prevalence of hMPV (6.1%) compared to outpatients (3.3%). Among hMPV-positive samples, type A was more prevalent than type B. A meta-analysis of 41 case-control datasets revealed a significant association between hMPV infection and respiratory infections (pooled odds ratio [OR] = 4.6; 95% CI: 3.7-5.6; I Interpretation: This first-of-its-kind meta-analysis highlights hMPV as a major contributor to RTIs, particularly in young children and severe respiratory conditions. The findings show the need for improved diagnostic strategies, targeted surveillance, and vaccine development to mitigate hMPV's global burden. Funding: This study was financially supported by the Iran University of Medical Sciences (Grant Number: 1402-2-75-25881).

Indexed as

Global healthMeta-analysisMetapneumovirusPrevalenceRespiratory infectionSystematic review

Identifiers

PMID40932845
PMCPMC12418874

What OpenQuestion holds

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LicenceCC BY-NC-ND
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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.