Evidence map›Paper›PMID 34425246›Full record

ArticleMicrobes and infection2022

Nasopharyngeal microbiome reveals the prevalence of opportunistic pathogens in SARS-CoV-2 infected individuals and their association with host types.

Abhishek Gupta, Rajesh Karyakarte, Suvarna Joshi, Rashmita Das, Kunal Jani, Yogesh Shouche, Avinash Sharma

Open access · greenAbstract read
In one paragraph

Article in Microbes and infection, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 37 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
37citing papers in PubMed, 4 pooled it
4.2field-weighted citation impact, top 4% 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

37 citing papers in PubMed, 4 syntheses or guidelines pooled it, 70 citations in OpenAlex.

  1. Pooled it
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  5. Journal of bacteriology · 2026
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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

7 authors at 2 institutions in 1 country.

Abhishek GuptaDBT-National Centre for Cell Science, Pune, Maharashtra, 411007, India.
Rajesh KaryakarteByramjee Jeejeebhoy Government Medical College, Pune, Maharashtra, 411001, India.
Suvarna JoshiByramjee Jeejeebhoy Government Medical College, Pune, Maharashtra, 411001, India.
Rashmita DasByramjee Jeejeebhoy Government Medical College, Pune, Maharashtra, 411001, India.
Kunal JaniDBT-National Centre for Cell Science, Pune, Maharashtra, 411007, India.
Yogesh ShoucheDBT-National Centre for Cell Science, Pune, Maharashtra, 411007, India.
Avinash SharmaDBT-National Centre for Cell Science, Pune, Maharashtra, 411007, India. Electronic address: avinash@nccs.res.in.
National Centre for Cell Science · INGovernment Medical College · IN

Funding

DBT-Wellcome Trust India Alliance IA/E/17/1/503700
6 · The paper itself

Abstract

The novel coronavirus, severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), is causing a severe global health emergency owing to its highly infectious nature. Although the symptoms of SARS-CoV-2 are well known but its impact on nasopharyngeal microbiome is poorly studied. The present cross-sectional study was intended to understand the perturbation in the nasopharyngeal microbiome composition within the infected (n = 63) and non-infected (n = 26) individuals using 16S rRNA gene based targeted amplicon sequencing and their association with host types and the prevalence of opportunistic pathogens at the stage of infection. The results confirmed that number of OTUs were significantly (p < 0.05) decreased in the SARS-CoV-2 infected individuals in comparison to non-infected individuals. Pairwise Wilcoxon test showed a significant (p < 0.05) increase in the abundance of Proteobacteria in infected individuals compared to non-infected ones and vice-versa for Fusobacteria and Bacteroidetes. Similarity percentage (SIMPER) analysis showed the increment in the abundance of opportunistic pathogens (Haemophilus, Stenotrophomonas, Acinetobacter, Moraxella, Corynebacterium 1, Gemella, Ralstonia, and Pseudomonas) involved in secondary infection. Furthermore, this study highlighted the microbial community structure of individuals within and across the families. In this study, we also performed the assesment of microbiome associated with host types (age and genders) and COVID-19 conditions (symptomatic and asymptomatic). The data suggested that the host types/conditions during the COVID-19 infection are potential factors in enrichment of specific bacterial communities in upper respiratory tract.

Indexed as

COVID-19MicrobiotaCross-Sectional StudiesFemaleHumansMalePrevalenceRNA, Ribosomal, 16SSARS-CoV-2RNA, Ribosomal, 16SAsymptomaticHost typesNasopharyngeal microbiomeSARS-CoV-2Symptomatic

Identifiers

PMID34425246
PMCPMC8379005
OpenAlexW3195257085

What OpenQuestion holds

Textmetadata
Read underepoch 390

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.