Keyphrases
COVID-19
100%
Antibody Test
100%
Current Infection
100%
Past Infection
100%
Severe Acute Respiratory Syndrome Coronavirus 2 Infection
46%
Confidence Interval
40%
Quantitative PCR
33%
Polymerase Chain Reaction Assay
33%
Symptom Onset
33%
China
13%
First Week
13%
Preprints
13%
Risk of Bias
13%
Seroprevalence Survey
13%
Europe
6%
National Survey
6%
Care Needs
6%
Virus
6%
Primary Care
6%
Asia
6%
Cochrane
6%
Number of Individuals
6%
Clinical Care
6%
Respiratory Symptoms
6%
Healthcare Workers
6%
Test Evaluation
6%
High Risk
6%
Secondary Care
6%
Enzyme-linked Immunosorbent Assay (ELISA)
6%
Search Methods
6%
Immune Response
6%
Forest Plot
6%
Embase
6%
Logistic Regression
6%
Selection Criteria
6%
Total IgG
6%
Small Fraction
6%
Diagnostic Accuracy
6%
Estimation Accuracy
6%
People's Republic of China
6%
Small Sample Size
6%
Antibody Level
6%
Antibody Assay
6%
Diagnostic Strategy
6%
Sparse Data
6%
Little Data
6%
IgG Antibody
6%
Low Prevalence
6%
World Health Organization
6%
Electronic Search
6%
IgM Antibody
6%
Multigroup
6%
Test Accuracy Studies
6%
Serological Test
6%
Random Effects
6%
IgA Antibody
6%
Diagnostic Challenge
6%
PubMed
6%
Index Tests
6%
Low Sensitivity
6%
Evidence Database
6%
Public Domain
6%
Hospitalized Patients
6%
National Health
6%
Clinical Diagnostic Criteria
6%
Commercial Test
6%
Management Objectives
6%
Infection Response
6%
Total Antibody
6%
Selective Reporting
6%
Differential Verification
6%
People in Need
6%
Chemiluminescent Enzyme Immunoassay (CLEIA)
6%
Public Health Management
6%
Lateral Flow Assay
6%
Test Diagnostics
6%
Living Systematic Review
6%
Selective Publication
6%
MedRxiv
6%
Innovative Diagnostics
6%
University of Bern
6%
Table Data
6%
Living Evidence
6%
BioRxiv
6%
2 × 2 Contingency Table
6%
Medicine and Dentistry
Infection
100%
Immunoassay
100%
Severe Acute Respiratory Syndrome Coronavirus 2
100%
Immunoglobulin M
42%
Reverse Transcription Polymerase Chain Reaction
35%
Prevalence
21%
Sensitivity and Specificity
14%
Immunoglobulin A
14%
Seroprevalence
14%
Systematic Review
7%
Primary Health Care
7%
Public Health
7%
Immune Response
7%
Logistic Regression Analysis
7%
Diagnostic Accuracy
7%
Cohort Analysis
7%
Secondary Care
7%
Immunoglobulin G
7%
Case Definition
7%
Forest Plot
7%
Health Care Management
7%
Lateral Flow Assay
7%
Chemiluminescence Immunoassay
7%
Diseases
7%
Virus
7%
Agricultural and Biological Sciences
Severe Acute Respiratory Syndrome Coronavirus
100%
Confidence Interval
60%
Immunoglobulin M
60%
Reverse Transcription Polymerase Chain Reaction
50%
Reference Standards
20%
Immunoglobulin A
20%
Seroprevalence
20%
Immune Response
10%
Systematic Review
10%
Selection Criterion
10%
National Surveys
10%
World Health Organization
10%
Serology
10%
Immunoglobulin G
10%
Chemiluminescence Immunoassay
10%
Biochemistry, Genetics and Molecular Biology
SARS Coronavirus
100%
Immunoglobulin M
54%
Reverse Transcription Polymerase Chain Reaction
45%
Prevalence
27%
Immunoglobulin A
18%
Seroprevalence
18%
Immune Response
9%
Immunoassay
9%
Sample Size
9%
Medline
9%
Immunoglobulin G
9%
Embase
9%
Chemoluminescence
9%
Cohort Study
9%
Serology
9%
Pharmacology, Toxicology and Pharmaceutical Science
Infection
100%
SARS Coronavirus
100%
Immunoglobulin M
42%
Prevalence
21%
Immunoassay
14%
Immunoglobulin A
14%
Seroprevalence
14%
Cohort Study
7%
Immunoglobulin G
7%
Lateral Flow Assay
7%
Diseases
7%
Neuroscience
SARS Coronavirus
100%
Immunoglobulin M
54%
Reverse Transcription Polymerase Chain Reaction
45%
Immunoglobulin A
18%
Serology
9%
Immunoglobulin G
9%
Immunoassay
9%
Chemiluminescence
9%