Standardization of ELISA protocols for serosurveys of the SARS-CoV-2 pandemic using clinical and at-home blood sampling.
Antibodies, Viral
/ blood
COVID-19
/ blood
COVID-19 Nucleic Acid Testing
COVID-19 Serological Testing
/ methods
COVID-19 Testing
Enzyme-Linked Immunosorbent Assay
/ methods
Humans
Immunoglobulin G
/ blood
Immunoglobulin M
/ blood
Pandemics
Reference Standards
SARS-CoV-2
/ immunology
Sensitivity and Specificity
Spike Glycoprotein, Coronavirus
/ immunology
Journal
Nature communications
ISSN: 2041-1723
Titre abrégé: Nat Commun
Pays: England
ID NLM: 101528555
Informations de publication
Date de publication:
04 01 2021
04 01 2021
Historique:
received:
24
06
2020
accepted:
29
11
2020
entrez:
5
1
2021
pubmed:
6
1
2021
medline:
14
1
2021
Statut:
epublish
Résumé
The extent of SARS-CoV-2 infection throughout the United States population is currently unknown. High quality serology is key to avoiding medically costly diagnostic errors, as well as to assuring properly informed public health decisions. Here, we present an optimized ELISA-based serology protocol, from antigen production to data analyses, that helps define thresholds for IgG and IgM seropositivity with high specificities. Validation of this protocol is performed using traditionally collected serum as well as dried blood on mail-in blood sampling kits. Archival (pre-2019) samples are used as negative controls, and convalescent, PCR-diagnosed COVID-19 patient samples serve as positive controls. Using this protocol, minimal cross-reactivity is observed for the spike proteins of MERS, SARS1, OC43 and HKU1 viruses, and no cross reactivity is observed with anti-influenza A H1N1 HAI. Our protocol may thus help provide standardized, population-based data on the extent of SARS-CoV-2 seropositivity, immunity and infection.
Identifiants
pubmed: 33397956
doi: 10.1038/s41467-020-20383-x
pii: 10.1038/s41467-020-20383-x
pmc: PMC7782755
doi:
Substances chimiques
Antibodies, Viral
0
Immunoglobulin G
0
Immunoglobulin M
0
Spike Glycoprotein, Coronavirus
0
spike protein, SARS-CoV-2
0
Types de publication
Journal Article
Research Support, N.I.H., Extramural
Research Support, N.I.H., Intramural
Langues
eng
Sous-ensembles de citation
IM
Pagination
113Subventions
Organisme : CCR NIH HHS
ID : HHSN261200800001C
Pays : United States
Organisme : NCI NIH HHS
ID : HHSN261200800001E
Pays : United States
Commentaires et corrections
Type : UpdateOf
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