Nasopharyngeal Microbiota Profiling of SARS-CoV-2 Infected Patients

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PMID PubMed identifier for scientific articles.
DOI Digital object identifier for electronic documents.
De Maio F, Posteraro B, Ponziani FR, Cattani P, Gasbarrini A, Sanguinetti M
Biological procedures online
16S rRNA sequencing, Bacterial community, Nasopharynx, SARS-CoV-2 infection
We analyzed the bacterial communities of the nasopharynx in 40 SARS-CoV-2 infected and uninfected patients. All infected patients had a mild COVID-19 disease. We did not find statistically significant differences in either bacterial richness and diversity or composition. These findings suggest a nasopharyngeal microbiota at least early resilient to SARS-CoV-2 infection.

Experiment 1

Needs review

Curated date: 2021/06/04

Curator: Claregrieve1

Revision editor(s): Claregrieve1, WikiWorks, Peace Sandy


Location of subjects
Host species Species from which microbiome was sampled. Contact us to have more species added.
Homo sapiens
Body site Anatomical site where microbial samples were extracted from according to the Uber Anatomy Ontology
Nasopharynx Nasenrachenraum,Epipharynx,Nasal part of pharynx,Pars nasalis pharyngis,Rhinopharynx,Nasopharynx,nasopharynx
Condition The experimental condition / phenotype studied according to the Experimental Factor Ontology
COVID-19 2019 novel coronavirus,2019 novel coronavirus infection,2019-nCoV,2019-nCoV infection,beta-CoV,beta-CoVs,betacoronavirus,coronavirus disease 2019,SARS-coronavirus 2,SARS-CoV-2,severe acute respiratory syndrome coronavirus 2,severe acute respiratory syndrome coronavirus 2 infectious disease,β-coronavirus,β-CoV,β-CoVs,COVID-19,cOVID-19
Group 0 name Corresponds to the control (unexposed) group for case-control studies
COVID-19 negative patients
Group 1 name Corresponds to the case (exposed) group for case-control studies
COVID-19 cases
Group 1 definition Diagnostic criteria applied to define the specific condition / phenotype represented in the case (exposed) group
Diagnosis with COVID-19 based on SARS-CoV-2 RNA detection using real-time reverse transcriptase-polymerase chain reaction (RT-PCR) assay
Group 0 sample size Number of subjects in the control (unexposed) group
Group 1 sample size Number of subjects in the case (exposed) group

Lab analysis

Sequencing type
16S variable region One or more hypervariable region(s) of the bacterial 16S gene
Sequencing platform Manufacturer and experimental platform used for quantifying microbial abundance

Statistical Analysis

Data transformation Data transformation applied to microbial abundance measurements prior to differential abundance testing (if any).
relative abundances
Statistical test
Mann-Whitney (Wilcoxon)
Significance threshold p-value or FDR threshold used for differential abundance testing (if any)
MHT correction Have statistical tests be corrected for multiple hypothesis testing (MHT)?

Alpha Diversity

Shannon Estimator of species richness and species evenness: more weight on species richness
Inverse Simpson Modification of Simpsons index D as 1/D to obtain high values in datasets of high diversity and vice versa
Richness Number of species