Evaluation of spike protein antigens for SARS-CoV-2 serology.

"Declaration of Competing Interest The authors declare that there is no conflict of interest."

"This research has been conducted with the contribution of NCR Biotech Science Cluster BIOREPOSITORY, DBT India consortium for COVID-19 Research and RGUHS-IISc Dengue biomarker research consortium. We thank Florian Krammer, Jason McLellan, Raghavan Varadarajan, Sameer Malladi for providing useful reagents; Sunaina Banerjee and Rohit Dutta for valuable discussions and Khantesh Agrawal for anonymizing the samples. This work was supported by the 10.13039/100007780Indian Institute of Science, Biotechnology Industry Research Assistance Council and CSR funding by Capgemini India. Funding agencies had no role in the design, execution, or interpretation of the study."