Evidence map›Paper›PMID 32159775›Full record

ArticleJAMA2020

Detection of SARS-CoV-2 in Different Types of Clinical Specimens.

Wenling Wang, Yanli Xu, Ruqin Gao, Roujian Lu, Kai Han, Guizhen Wu, Wenjie Tan

7 registry-linked trialsAbstract readMulticenter Study
In one paragraph

Article in JAMA, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 7 registered trials, which are not on this map. Cited by 2,760 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
2,760citing papers in PubMed, 4 pooled it
–field-weighted citation impact
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.

NCT04395924 completednot on this map

Maternal-Foetal Transmission of COVID-19

TypeobservationalSponsorCentre Hospitalier Régional d'OrléansRan2020 to 2021Enrolled50ConditionsMaternal Fetal Infection Transmission, COVID-19, SARS-CoV 2ArmsDiagnosis of SARS-Cov2 by RT-PCR and : IgG, Ig M serologies in the amniotoc fluid, the blood cord and the placenta
NCT04473352 unknown statusnot on this map

Diagnostic Accuracy of COVID-19 Detection Tests in Different Body Fluids of Infected Men and Concordance With Viral Cultures

Typeobservational_patient_registrySponsorNucleo De Pesquisa E Desenvolvimento De Medicamentos Da Universidade Federal Do CearaRan2020 to 2021Enrolled80ConditionsCovid19
NCT04517162 phase1 / phase2unknown statusnot on this map

Effect of Collagen-Polyvinylpyrrolidone for the Treatment of Hyperinflammation and the Pulmonary Fibrosis in COVID-19 Patients. Double Blind Placebo-controlled Pilot Trial

TypeinterventionalSponsorJanette Furuzawa CarballedaRan2020 to 2021Enrolled90ConditionsCovid19, Cytokine Storm, Regulation of Inflammatory Response, Pulmonary FibrosisArmsCollagen-Polyvinylpyrrolidone
NCT04598347 unknown statusnot on this map

Valuation of the Possible Vertical Transmission of SARS-CoV-2 Through Study of Amniotic Fluid and Chorionic Villi of Affected Pregnant Women for the COVID-19

Typeobservational_patient_registrySponsorFundació Institut de Recerca de l'Hospital de la Santa Creu i Sant PauRan2020 to 2022Enrolled225ConditionsCovid19, Pregnancy Related
NCT04619290 phase1unknown statusnot on this map

Treatment in Outpatient Patients With Covid-19 With Methylene Blue and Photodynamic

TypeinterventionalSponsorHospital Reg. Lic. Adolfo Lopez MateosRan2020 to 2020Enrolled46ConditionsSars Cov 2ArmsSublingual Methylene blue, Control patients
NCT04661631 unknown statusnot on this map

Lung Ultrasound in COVID-19 Infection Screening for Patients With Indication of Emergency Surgery

Typeobservational_patient_registrySponsorFundacion Clinica Valle del LiliRan2020 to 2021Enrolled451ConditionsUltrasonography, Lung Diseases, Surgical Procedure, Covid19ArmsLung ultrasound
NCT04721457 phase4completednot on this mapstarted 2021, after this paper: background citation

Mouth Rinses Efficacy on Salivary SARS-CoV-2 Viral Load: A Randomized Clinical Trial

TypeinterventionalSponsorKing Abdulaziz UniversityRan2021 to 2021Enrolled90ConditionsSARS-CoV-2, COVID-19, Mouthwashes, Viral LoadArmsDistilled Water, 1% Povidone Iodine (PVP-I), 1.5% Hydrogen Peroxide (H2O2), 0.075% Cetylpyridinium Chloride (CPC), 0.1% Sodium Hypochlorite
3 · Its place in the literature

Who cites it

2,760 citing papers in PubMed, 4 syntheses or guidelines pooled it.

  1. Pooled it
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  19. In Silico Analysis of CMolecules (Basel, Switzerland) · 2025
    Article
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2,700 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors.

Wenling WangNational Institute for Viral Disease Control and Prevention, China CDC, Beijing, China.
Yanli XuBeijing Ditan Hospital, Capital Medical University, Beijing, China.
Ruqin GaoQingdao Municipal Center for Disease Control and Prevention, Qingdao, China.
Roujian LuNational Institute for Viral Disease Control and Prevention, China CDC, Beijing, China.
Kai HanBeijing Ditan Hospital, Capital Medical University, Beijing, China.
Guizhen WuNational Institute for Viral Disease Control and Prevention, China CDC, Beijing, China.
Wenjie TanNational Institute for Viral Disease Control and Prevention, China CDC, Beijing, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

PubMed holds no abstract for this paper.

Indexed as

AdolescentAdultAgedBetacoronavirusBronchoalveolar Lavage FluidBronchoscopyChildChild, PreschoolChinaCoronavirus InfectionsCOVID-19FecesFemaleGene DosageGenes, ViralHumansRNA, Viral

Identifiers

PMID32159775
PMCPMC7066521

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

and 1 more above

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.