Development of low-cost serological immunoassay to detect antiviral antibodies to Sars-Cov-2 Spike protein
Peroni, L.; Toscaro, J.; Canateli, C.; Lima, G.; Pagliarone, a.; Cardoso, E.; Viana, R.; Bassani, J.; Lin-Wang, H.; Abboud, C. S.; Gun, C.; Franchini, K.; Bajgelman, M. C.
Show abstract
Seroconversion to SARS-CoV-2 has been widely studied to evaluate infection spreading for epidemiological purpose, or even in studies of protective immunity in convalescent or vaccinated individuals. The viral particle has an envelope harboring the spike glycoprotein, which can be used as an antigen for assay development, to detect antiviral antibodies to SARS-CoV-2. Since several vaccines encode a spike subunit, the full length spike-based immunoassay should be a universal tool to evaluate seroconversion. In this manuscript, we propose a low-cost ELISA that can be used to detect antiviral IgG to SARS-CoV-2 in human serum.
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