Journal: Journal of Virological Methods
Article Title: Evaluation of a surrogate virus neutralization test for high-throughput serosurveillance of SARS-CoV-2
doi: 10.1016/j.jviromet.2021.114228
Figure Lengend Snippet: Correlations between the percentage of inhibition measured by the surrogate viral neutralisation test (sVNT) and the log(dilution factors or signal-to-noise ratio) for the conventional viral neutralization test (cVNT) or the Luminex multiplex immunological assay (MIA) as calculated by the nonparametric Spearman correlation test (r s ). Seropositivity cut-off levels for the sVNT are indicated by the dashed grey lines at 20 or 30 % inhibition. Negative samples on the cVNT or MIA were not included in these figures.
Article Snippet: Here, we performed an independent evaluation of a commercially available surrogate virus neutralization test (sVNT, GenScript cPassTM) that can be done without biosafety level 3 containment in less than 2 h. When using the cVNT and a Luminex multiplex immunoassay (MIA) as reference, the sVNT obtained a sensitivity of 94 % (CI 90–96 %) on a panel of 317 immune sera that were obtained from hospitalized and mild COVID-19 cases from Belgium and a sensitivity of 88 % (CI 81–93 %) on a panel of 184 healthcare workers from the Democratic Republic of Congo.
Techniques: Inhibition, Neutralization, Luminex, Multiplex Assay