Evidence map›Paper›PMID 36366580›Full record

ArticleViruses2022

Detection of Torquetenovirus and Redondovirus DNA in Saliva Samples from SARS-CoV-2-Positive and -Negative Subjects.

Pietro Giorgio Spezia, Andreina Baj, Francesca Drago Ferrante, Sara Boutahar, Lorenzo Azzi, Angelo Genoni, Daniela Dalla Gasperina, Federica Novazzi, Francesco Dentali, Daniele Focosi and 1 more

Open access · goldAbstract read
In one paragraph

Article in Viruses, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
1.8field-weighted citation impact, top 17% 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

12 citing papers in PubMed, 13 citations in OpenAlex.

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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

11 authors at 3 institutions in 1 country.

Pietro Giorgio SpeziaDepartment of Translational Research, University of Pisa, 56126 Pisa, Italy.ORCID 0000-0002-6743-014X
Andreina BajDepartment of Medicine and Surgery, University of Insubria, 21100 Varese, Italy.ORCID 0000-0003-0088-2712
Francesca Drago FerranteDepartment of Medicine and Surgery, University of Insubria, 21100 Varese, Italy.ORCID 0000-0003-4950-0703
Sara BoutaharDepartment of Medicine and Surgery, University of Insubria, 21100 Varese, Italy.
Lorenzo AzziDepartment of Medicine and Surgery, University of Insubria, 21100 Varese, Italy.
Angelo GenoniDepartment of Medicine and Surgery, University of Insubria, 21100 Varese, Italy.
Daniela Dalla GasperinaDepartment of Medicine and Surgery, University of Insubria, 21100 Varese, Italy.ORCID 0000-0002-1187-6222
Federica NovazziDepartment of Medicine and Surgery, University of Insubria, 21100 Varese, Italy.
Francesco DentaliDepartment of Medicine and Surgery, University of Insubria, 21100 Varese, Italy.
Daniele FocosiNorth-Western Tuscany Blood Bank, Pisa University Hospital, 56124 Pisa, Italy.ORCID 0000-0001-8811-195X
Fabrizio MaggiLaboratory of Virology, National Institute for Infectious Diseases, Lazzaro Spallanzani IRCCS, 00161 Rome, Italy.ORCID 0000-0001-7489-5271
University of Insubria · ITIstituto Nazionale per le Malattie Infettive Lazzaro Spallanzani · ITUniversity of Pisa · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesTorquetenovirus (TTV) and Redondovirus (ReDoV) are the most prevalent viruses found in the human respiratory virome in viral metagenomics studies. A large-scale epidemiological study was performed to investigate their prevalence and loads in saliva samples according to SARS-CoV-2 status.

methodsSaliva samples from 448 individuals (73% SARS-CoV-2 negative and 27% SARS-CoV-2 positive) aged 23-88 years were tested. SARS-CoV-2 and TTV were determined in saliva by specific qualitative and quantitative real-time PCRs, respectively. A sub-cohort of 377 subjects was additionally tested for the presence and load of ReDoV in saliva, and a different sub-cohort of 120 subjects for which paired saliva and plasma samples were available was tested for TTV and ReDoV viremia at the same timepoints as saliva.

resultsTTV in saliva was 72% prevalent in the entire cohort, at a mean DNA load of 4.6 log copies/mL, with no difference regardless of SARS-CoV-2 status. ReDoV was found in saliva from 61% of the entire cohort and was more prevalent in the SARS-CoV-2-negative subgroup (65% vs. 52%, respectively). In saliva, the total mean load of ReDoV was very similar to the one of TTV, with a value of 4.4 log copies/mL. The mean viral loads in subjects infected with a single virus, namely, those infected with TTV or ReDoV alone, was lower than in dually infected samples, and Tukey's multiple-comparison test showed that ReDoV single-infected samples resulted in the only true outlier (

conclusionsThis study establishes the prevalence and mean value of TTV and ReDoV in saliva samples and demonstrates the existence of differences between these two components of the human virome.

Indexed as

COVID-19DNA Virus InfectionsTorque teno virusDNA, ViralHumansSalivaSARS-CoV-2Viral LoadDNA, ViralRedondovirusReDoVsalivaSARS-CoV-2Torque Teno VirusTTV

Identifiers

PMID36366580
PMCPMC9695164
OpenAlexW4308872183

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.