Evidence map›Paper›PMID 30033505›Full record

ArticleEuropean journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology2018

The nasopharyngeal microbiota in patients with viral respiratory tract infections is enriched in bacterial pathogens.

Sophie Edouard, Matthieu Million, Dipankar Bachar, Grégory Dubourg, Caroline Michelle, Laetitia Ninove, Rémi Charrel, Didier Raoult

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In one paragraph

Article in European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 68 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
68citing papers in PubMed, 3 pooled it
4.2field-weighted citation impact, top 5% 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

68 citing papers in PubMed, 3 syntheses or guidelines pooled it, 125 citations in OpenAlex.

  1. Pooled it
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  6. Myeloid cell reprogramming drives enhanced defense againstProceedings of the National Academy of Sciences of the United States of America · 2026
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  7. Journal of bacteriology · 2026
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  8. Respiratory Viral Infections and the Tonsillar Transcriptome: An Exploratory Study.Clinical and experimental allergy : journal of the British Society for Allergy and Clinical Immunology · 2026
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8 more citing papers are in PubMed but not listed here.

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 at 2 institutions in 1 country.

Sophie EdouardAix Marseille Univ, IRD, APHM, MEPHI, IHU-Méditerranée Infection, 19-21 Bd Jean Moulin, 13005, Marseille, France.
Matthieu MillionAix Marseille Univ, IRD, APHM, MEPHI, IHU-Méditerranée Infection, 19-21 Bd Jean Moulin, 13005, Marseille, France.
Dipankar BacharAix Marseille Univ, IRD, APHM, MEPHI, IHU-Méditerranée Infection, 19-21 Bd Jean Moulin, 13005, Marseille, France.
Grégory DubourgAix Marseille Univ, IRD, APHM, MEPHI, IHU-Méditerranée Infection, 19-21 Bd Jean Moulin, 13005, Marseille, France.
Caroline MichelleAix Marseille Univ, IRD, APHM, MEPHI, IHU-Méditerranée Infection, 19-21 Bd Jean Moulin, 13005, Marseille, France.
Laetitia NinoveUnité des Virus Émergents, Aix-Marseille Univ, IRD 190, Inserm 1207, IHU Méditerranée Infection, Marseille, France.
Rémi CharrelUnité des Virus Émergents, Aix-Marseille Univ, IRD 190, Inserm 1207, IHU Méditerranée Infection, Marseille, France.
Didier RaoultAix Marseille Univ, IRD, APHM, MEPHI, IHU-Méditerranée Infection, 19-21 Bd Jean Moulin, 13005, Marseille, France. didier.raoult@gmail.com.
Méditerranée Infection Foundation · FRInserm · FR

Funding

IHU Méditerranée Infection 10-IAHU-03
6 · The paper itself

Abstract

The nasopharynx is the primary site of colonization by respiratory pathogen that constitutes the port of entrance in the respiratory tract. The role of mucosal respiratory microbiota in infection has been recently emphasized; therefore, we aimed to assess if a specific respiratory microbiota profile was associated with symptomatic infection and/or with presence of respiratory viruses. We performed a case-control study to characterize the healthy respiratory microbiota and its alteration during acute viral infections. Next-generation sequencing of the 16S rRNA gene was applied to 225 nasopharyngeal samples from 177 patients with viral respiratory infection and 48 matched healthy controls. We evidenced an important decrease of bacterial alpha-diversity in patients with symptomatic respiratory infection and a loss of the healthy core microbiota, specifically anaerobes and Prevotella spp. Moreover, eight respiratory pathogens were enriched in these patients, including Staphylococcus aureus, Haemophilus influenzae, Streptococcus pneumoniae, Moraxella catarrhalis, Dol osigranulum pigrum and Corynebacterium propinquum/pseudodiphtheriticum, whose role in respiratory infection is unclear. The asymptomatic carrier of influenza harbors a microbiota similar to healthy subjects, suggesting a critical role of microbiota in the clinical expression of viruses. These data suggest that the commensal microbiota plays a significant role in susceptibility to viral infection. The frequent co-detection of virus and bacteria raises the question of a strategy to prevent bacterial disease, focusing on the prevention of nasopharyngeal colonization through effective antibiotic treatment. In addition to antibiotics, further studies should test preventive or therapeutic interventions for maintaining or restoring a healthy nasopharyngeal microbiota.

Indexed as

Acute DiseaseAdolescentAdultAgedAged, 80 and overBacteriaCase-Control StudiesChildChild, PreschoolCoinfectionDisease SusceptibilityFemaleHaemophilus influenzaeHigh-Throughput Nucleotide SequencingHumansInfantRNA, Ribosomal, 16SHumanMicrobiomeMicrobiotaRespiratory infectionRespiratory tract infectionVirus

Identifiers

PMID30033505
OpenAlexW2883529746

What OpenQuestion holds

Textmetadata
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.