Journal
VIRUSES-BASEL
Volume 14, Issue 6, Pages -Publisher
MDPI
DOI: 10.3390/v14061211
Keywords
single-round infection fluorescent SARS-CoV-2 virus; neutralization assay; sensitivity; specificity; accuracy; linearity
Categories
Funding
- IHII pilot grant from Sealy & Smith Foundation
- NIH [HHSN272201600013C, AI134907, AI145617, UL1TR001439]
- Sealy & Smith Foundation
- Kleberg Foundation
- John S. Dunn Foundation
- Amon G. Carter Foundation
- Gilson Longenbaugh Foundation
- Summerfield Robert Foundation
Ask authors/readers for more resources
A robust serological test to measure neutralizing antibodies against SARS-CoV-2 in BSL-2 laboratories has been developed and evaluated, showing high sensitivity and specificity compared to the gold standard test. The test is highly reproducible and can be used for large-scale testing of COVID-19 patients or vaccinated individuals.
A robust serological test to measure neutralizing antibodies against SARS-CoV-2 in biosafety level-2 (BSL-2) laboratories is useful for monitoring antibody response after vaccination or natural infection. The gold standard assay is the conventional plaque reduction neutralization test (PRNT) which requires extensive labor, live viruses, and BSL-3 facilities. Recently, we developed a novel single-round infection fluorescent SARS-CoV-2 virus (SFV) that can be safely used at BSL-2 laboratories for high-throughput neutralization and antiviral testing. In this study, we evaluated the performance of the neutralization test using this SFV with 80 PRNT-positive and 92 PRNT-negative clinical serum or plasma specimens. The SFV neutralization test (SFVNT) has 100% sensitivity and specificity compared to the PRNT. Furthermore, the neutralizing titers generated by the SFVNT and PRNT are highly correlated, with R-2 = 0.903 (p < 0.0001). Due to high sensitivity, specificity, accuracy, and reproducibility, the SFVNT can be deployed for the large-scale testing of COVID-19 patients or vaccinated people in general lab settings.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available