Investigation of Nasal/Oropharyngeal Microbial Community of COVID-19 Patients by 16S rDNA Sequencing

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Reviewed Marked as Reviewed by Atrayees on 2023-7-21
study design
Citation
PMID PubMed identifier for scientific articles.
DOI Digital object identifier for electronic documents.
URI
Authors
Rueca M, Fontana A, Bartolini B, Piselli P, Mazzarelli A, Copetti M, Binda E, Perri F, Gruber CEM, Nicastri E, Marchioni L, Ippolito G, Capobianchi MR, Di Caro A, Pazienza V
Journal
International journal of environmental research and public health
Year
2021
Keywords:
Nasal/Oropharyngeal, SARS-CoV2, microbiota
Since December 2019, SARS-CoV-2 infection has been still rapidly spreading, resulting in a pandemic, followed by an increasing number of cases in countries throughout the world. The severity of the disease depends on the patient's overall medical condition but no appropriate markers are available to establish the prognosis of the patients. We performed a 16S rRNA gene sequencing, revealing an altered composition of the nasal/oropharyngeal (NOP) microbiota in 21 patients affected by COVID-19, paucisymptomatic or in an Intensive Care Unit (ICU), as compared to 10 controls negative for COVID-19 or eight affected by a different Human Coronavirus (HKU, NL63 and OC43). A significant decrease in Chao1 index was observed when patients affected by COVID-19 (in ICU) were compared to paucisymptomatic. Furthermore, patients who were in ICU, paucisymptomatic or affected by other Coronaviruses all displayed a decrease in the Chao1 index when compared to controls, while Shannon index significantly decreased only in patients under ICU as compared to controls and paucisymptomatic patients. At the phylum level, Deinococcus-Thermus was present only in controls as compared to SARS-CoV-2 patients admitted to ICU, paucisymptomatic or affected by other coronaviruses. Candidatus Saccharibacteria (formerly known as TM7) was strongly increased in negative controls and SARS-CoV-2 paucisymptomatic patients as compared to SARS-CoV-2 ICU patients. Other modifications were observed at a lower taxonomy level. Complete depletion of Bifidobacterium and Clostridium was exclusively observed in ICU SARS-CoV-2 patients, which was the only group characterized by the presence of Salmonella, Scardovia, Serratia and Pectobacteriaceae. In conclusion, our preliminary results showed that nasal/oropharyngeal microbiota profiles of patients affected with SARS-CoV-2 may provide valuable information in order to facilitate the stratification of patients and may open the way to new interventional strategies in order to ameliorate the outcome of the patients.

Experiment 1


Reviewed Marked as Reviewed by Atrayees on 2023-7-21

Curated date: 2021/06/30

Curator: Claregrieve1

Revision editor(s): Claregrieve1, WikiWorks, Atrayees

Subjects

Location of subjects
Italy
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 , Oropharynx Nasenrachenraum,Epipharynx,Nasal part of pharynx,Pars nasalis pharyngis,Rhinopharynx,Nasopharynx,nasopharynx,Mesopharynx,Oral part of pharynx,Pars oralis pharyngis,Oropharynx,oropharynx
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
Healthy controls
Group 1 name Corresponds to the case (exposed) group for case-control studies
ICU COVID-19 patients
Group 1 definition Diagnostic criteria applied to define the specific condition / phenotype represented in the case (exposed) group
COVID-19 patients admitted to intensive care unit
Group 0 sample size Number of subjects in the control (unexposed) group
10
Group 1 sample size Number of subjects in the case (exposed) group
10

Lab analysis

Sequencing type
16S
16S variable region One or more hypervariable region(s) of the bacterial 16S gene
V2-V9
Sequencing platform Manufacturer and experimental platform used for quantifying microbial abundance
Ion Torrent

Statistical Analysis

Data transformation Data transformation applied to microbial abundance measurements prior to differential abundance testing (if any).
relative abundances
Statistical test
Kruskall-Wallis
Significance threshold p-value or FDR threshold used for differential abundance testing (if any)
0.05
MHT correction Have statistical tests be corrected for multiple hypothesis testing (MHT)?
Yes

Alpha Diversity

Shannon Estimator of species richness and species evenness: more weight on species richness
decreased
Chao1 Abundance-based estimator of species richness
decreased

Signature 1

Reviewed Marked as Reviewed by Atrayees on 2023-7-21

Curated date: 2021/06/30

Curator: Claregrieve1

Revision editor(s): Claregrieve1

Source: Table S1

Description: Differential microbial abundance between healthy controls and ICU COVID-19 patients

Abundance in Group 1: decreased abundance in ICU COVID-19 patients

NCBI Quality ControlLinks
Candidatus Saccharibacteria
Deinococcota
Aeromonadaceae
Alicyclobacillaceae
Caulobacteraceae
Chromobacteriaceae
Deinococcaceae
Helicobacteraceae
Hydrogenophilaceae
Intrasporangiaceae
Oxalobacteraceae
Rubrobacteraceae
Sporomusaceae
Thermoanaerobacteraceae
Thermoanaerobacterales Family III. Incertae Sedis
Acinetobacter
Aeromonas
Arthrobacter
Bergeyella
Bifidobacterium
Burkholderia
Butyrivibrio
Clostridium
Deinococcus
Filifactor
Gulbenkiania
Johnsonella
Microbacterium
Pasteurella
Roseateles
Ralstonia
Rubrobacter
Snodgrassella
Tepidiphilus
Thermoanaerobacter
Thermoanaerobacterium
Thermosinus
Flavobacteriaceae
Mollicutes
Neisseriales
Porphyromonadaceae
Selenomonadaceae
Tissierellia
Variovorax

Revision editor(s): Claregrieve1

Signature 2

Reviewed Marked as Reviewed by Atrayees on 2023-7-21

Curated date: 2021/06/30

Curator: Claregrieve1

Revision editor(s): Claregrieve1

Source: Table S1

Description: Differential microbial abundance between healthy controls and ICU COVID-19 patients

Abundance in Group 1: increased abundance in ICU COVID-19 patients

NCBI Quality ControlLinks
Dermabacteraceae
Erwiniaceae
Nocardiaceae
Pectobacteriaceae
Campylobacterales
Lysobacteraceae
Yersiniaceae
Enterobacter
Escherichia
Klebsiella
Lachnoclostridium
Lawsonella
Micrococcus
Olsenella
Paenibacillus
Pantoea
Rhodococcus
Salmonella
Scardovia
Serratia
Stenotrophomonas
Eubacteriales Family XIII. Incertae Sedis
Mycobacteriales
Enterococcaceae
Pseudomonadaceae
Staphylococcaceae

Revision editor(s): Claregrieve1

Experiment 2


Reviewed Marked as Reviewed by Atrayees on 2023-7-21

Curated date: 2021/07/01

Curator: Claregrieve1

Revision editor(s): Claregrieve1, WikiWorks, Atrayees

Differences from previous experiment shown

Subjects

Group 1 name Corresponds to the case (exposed) group for case-control studies
Mild-moderate COVID-19 patients
Group 1 definition Diagnostic criteria applied to define the specific condition / phenotype represented in the case (exposed) group
COVID-19 patients with mild to moderate symptoms that were not admitted to an intensive care unit
Group 1 sample size Number of subjects in the case (exposed) group
11

Lab analysis

Statistical Analysis

Alpha Diversity

Shannon Estimator of species richness and species evenness: more weight on species richness
unchanged
Chao1 Abundance-based estimator of species richness
decreased

Signature 1

Reviewed Marked as Reviewed by Atrayees on 2023-7-21

Curated date: 2021/07/01

Curator: Claregrieve1

Revision editor(s): Claregrieve1

Source: Table S1

Description: Differential abundance of microbial taxa between healthy controls and mild-moderate COVID-19 cases

Abundance in Group 1: decreased abundance in Mild-moderate COVID-19 patients

NCBI Quality ControlLinks
Deinococcota
Alicyclobacillaceae
Caulobacteraceae
Chromobacteriaceae
Hydrogenophilaceae
Intrasporangiaceae
Microbacteriaceae
Oxalobacteraceae
Rubrobacteraceae
Sporomusaceae
Thermoanaerobacteraceae
Thermoanaerobacterales Family III. Incertae Sedis
Burkholderiales
Arthrobacter
Bulleidia
Burkholderia
Deinococcus
Gulbenkiania
Johnsonella
Kocuria
Lactococcus
Okadaella
Roseateles
Ralstonia
Rubrobacter
Snodgrassella
Tepidiphilus
Thermoanaerobacter
Thermoanaerobacterium
Thermosinus
Burkholderiaceae
Clostridiaceae
Mycobacteriales
Enterobacteriaceae
Campylobacterota
Propionibacteriaceae
Selenomonadaceae
Variovorax

Revision editor(s): Claregrieve1

Signature 2

Reviewed Marked as Reviewed by Atrayees on 2023-7-21

Curated date: 2021/07/01

Curator: Claregrieve1

Revision editor(s): Claregrieve1

Source: Table S1

Description: Differential abundance of microbial taxa between healthy controls and mild-moderate COVID-19 cases

Abundance in Group 1: increased abundance in Mild-moderate COVID-19 patients

NCBI Quality ControlLinks
Deinococcaceae
Methylobacteriaceae
Alphaproteobacteria
Campylobacterales
Campylobacterota
Flavobacteriales
Mycoplasmatota
Halanaerobium
Methylobacterium
Streptobacillus
Eubacteriales Family XIII. Incertae Sedis
Enterococcaceae
Eubacteriaceae
Moraxellaceae
Mycoplasmataceae
Staphylococcaceae

Revision editor(s): Claregrieve1

Experiment 3


Reviewed Marked as Reviewed by Atrayees on 2023-7-21

Curated date: 2021/07/01

Curator: Claregrieve1

Revision editor(s): Claregrieve1, WikiWorks, Atrayees

Differences from previous experiment shown

Subjects

Group 0 name Corresponds to the control (unexposed) group for case-control studies
Mild-Moderate COVID-19 patients
Group 1 name Corresponds to the case (exposed) group for case-control studies
ICU COVID-19 patients
Group 1 definition Diagnostic criteria applied to define the specific condition / phenotype represented in the case (exposed) group
COVID-19 patients admitted to intensive care unit
Group 0 sample size Number of subjects in the control (unexposed) group
11
Group 1 sample size Number of subjects in the case (exposed) group
10

Lab analysis

Statistical Analysis

Alpha Diversity

Shannon Estimator of species richness and species evenness: more weight on species richness
decreased
Chao1 Abundance-based estimator of species richness
decreased

Signature 1

Reviewed Marked as Reviewed by Atrayees on 2023-7-21

Curated date: 2021/07/01

Curator: Claregrieve1

Revision editor(s): Claregrieve1

Source: Table S1

Description: Differential abundance of microbial taxa between mild-moderate COVID-19 patients and ICU-admitted COVID-19 patients

Abundance in Group 1: decreased abundance in ICU COVID-19 patients

NCBI Quality ControlLinks
Acinetobacter
Aeromonadaceae
Aeromonas
Bergeyella
Bifidobacterium
Bulleidia
Butyrivibrio
Candidatus Saccharibacteria
Clostridium
Filifactor
Flavobacteriales
Halanaerobiaceae
Halanaerobium
Helicobacteraceae
Methylobacterium
Mycoplasmataceae
Pasteurella
unclassified Mycoplasmataceae
unclassified Mollicutes
unclassified Moraxellaceae
unclassified Micrococcaceae
unclassified Fusobacteriales
unclassified Fusobacteriaceae
unclassified Flavobacteriaceae
unclassified Eubacteriaceae
unclassified Campylobacterota
unclassified Alphaproteobacteria
unclassified Bifidobacteriaceae (miscellaneous)
unclassified Neisseriales
unclassified Porphyromonadaceae
unclassified Mycoplasmatota
unclassified Tissierellia

Revision editor(s): Claregrieve1

Signature 2

Reviewed Marked as Reviewed by Atrayees on 2023-7-21

Curated date: 2021/07/01

Curator: Claregrieve1

Revision editor(s): Claregrieve1

Source: Table S1

Description: Differential abundance of microbial taxa between mild-moderate COVID-19 patients and ICU-admitted COVID-19 patients

Abundance in Group 1: increased abundance in ICU COVID-19 patients

NCBI Quality ControlLinks
Enterobacter
Erwiniaceae
Escherichia
Klebsiella
Kocuria
Lachnoclostridium
Lactococcus
Lawsonella
Microbacteriaceae
Micrococcus
Nocardiaceae
Okadaella
Olsenella
Paenibacillus
Pantoea
Pectobacteriaceae
Rhodococcus
Salmonella
Scardovia
Serratia
Stenotrophomonas
Lysobacteraceae
Yersiniaceae
unclassified Corynebacteriaceae
unclassified Mycobacteriales
unclassified Enterobacteriaceae
unclassified Propionibacteriaceae
unclassified Pseudomonas
unclassified Lysobacteraceae

Revision editor(s): Claregrieve1

Experiment 4


Reviewed Marked as Reviewed by Atrayees on 2023-7-21

Curated date: 2021/07/01

Curator: Claregrieve1

Revision editor(s): Claregrieve1, WikiWorks, Atrayees

Differences from previous experiment shown

Subjects

Group 0 name Corresponds to the control (unexposed) group for case-control studies
Patients infected with other human coronaviruses
Group 0 sample size Number of subjects in the control (unexposed) group
8

Lab analysis

Statistical Analysis

Alpha Diversity

Shannon Estimator of species richness and species evenness: more weight on species richness
unchanged
Chao1 Abundance-based estimator of species richness
decreased

Signature 1

Reviewed Marked as Reviewed by Atrayees on 2023-7-21

Curated date: 2021/07/01

Curator: Claregrieve1

Revision editor(s): Claregrieve1, Atrayees

Source: Table S1

Description: Differential abundance of microbial taxa between non-COVID coronavirus patients and ICU COVID patients

Abundance in Group 1: decreased abundance in ICU COVID-19 patients

NCBI Quality ControlLinks
Acetobacteraceae
Acinetobacter
Actinomyces sp.
Aeromonadaceae
Aeromonas
Alcaligenaceae
Alistipes
Anaerostipes
Arsenophonus
Arthrobacter
Bergeyella
Bifidobacterium
Blastococcus
Blautia
Brevibacteriaceae
Brevibacterium
Brevundimonas
Burkholderia
Casaltella
Caulobacter
Caulobacteraceae
Cellvibrionaceae
Chitinophagaceae
Christensenellaceae
Chryseobacterium
Clostridium
Coriobacteriaceae
Cupriavidus
Demequinaceae
Desulfovibrionaceae
Dorea
Facklamia
Filifactor
Geodermatophilaceae
Holdemanella
Intrasporangiaceae
Janibacter
Massilia
Methylobacteriaceae
Methylobacterium
Microbacterium
Morganellaceae
Mycobacteriaceae
Mycobacterium
Negativicoccus
Nocardioidaceae
Nocardioides
Odoribacter
Odoribacteraceae
Oxalobacteraceae
Parabacteroides
Paracoccus
Pedobacter
Roseateles
Planococcaceae
Pseudonocardiaceae
Ralstonia
Rhizobiaceae
Rikenellaceae
Roseburia
Rubrobacter
Rubrobacteraceae
Ruminiclostridium
Ruminococcus
Saccharopolyspora
Snodgrassella
Sphingobacteriaceae
Sphingomonadaceae
Sphingomonas
Tyzzerella
Xanthomonas
unclassified Actinomycetales
unclassified Alphaproteobacteria
unclassified Bacillaceae
unclassified Burkholderiaceae
unclassified Burkholderiales
unclassified Clostridiaceae
unclassified Dermabacteraceae
unclassified Erysipelotrichaceae
unclassified Erysipelotrichales
unclassified Erysipelotrichia
unclassified Eubacteriaceae
unclassified Flavobacteriaceae
unclassified Intrasporangiaceae
unclassified Microbacteriaceae
unclassified Micrococcaceae
unclassified Neisseriales
unclassified Nocardiaceae
unclassified Paracoccaceae
unclassified Peptoniphilaceae
unclassified Ruminococcus
unclassified Sphingomonadaceae
unclassified Tissierellia
Oscillospiraceae

Revision editor(s): Claregrieve1, Atrayees

Signature 2

Reviewed Marked as Reviewed by Atrayees on 2023-7-21

Curated date: 2021/07/01

Curator: Claregrieve1

Revision editor(s): Claregrieve1

Source: Table S1

Description: Differential abundance of microbial taxa between non-COVID coronavirus patients and ICU COVID patients

Abundance in Group 1: increased abundance in ICU COVID-19 patients

NCBI Quality ControlLinks
Lactococcus
Salmonella
Scardovia
Serratia
unclassified Campylobacterales
Clostridiales Family XIII bacterium
unclassified Enterococcaceae
unclassified Pseudomonadaceae

Revision editor(s): Claregrieve1