STATEMENT OF CONTRIBUTION
Y.L. Lau conceptualized the study. Y.L. Lau, M. Peiris, W. Tu, D. Leung, J.S. Rosa Duque, and X. Wang designed the study. Y.L. Lau led the acquisition of funding. Y.L. Lau, W. Tu, and M. Peiris supervised the project. S.M. Chan, D. Leung, X. Mu, S.M.S. Cheng, I.Y.S. Tam, and J.H.Y. Lam led the study administrative procedures. W.H.S. Wong provided software support. S.M. Chan, and W.H.S. Wong contributed to recruitment of participants. Y.L. Lau and J.S. Rosa Duque provided study-related clinical assessments and follow-up. D. Leung, S.M. Chan, C.H. Cheang, J.H.Y. Lam, J.S. Rosa Duque, and Y.L. Lau collected safety data. S.M.S. Cheng, S. Chaothai, L.C.H. Tsang, and M. Peiris developed and performed S-RBD IgG, and sVNT. X. Mu, Y. Zhang, M. Wang, W. Zhang, Y. Chung, H.H.W. Wong, A.M.T. Lee, W.Y. Li, X. Wang, and W. Tu developed and performed the T cell assays. D. Leung, T.S.S. Lee, and J.H.Y. Lam curated and analyzed the data. D. Leung and J.H.Y. Lam visualized the data. D. Leung, X. Mu, S.M.S. Cheng, J.S. Rosa Duque, J.H.Y. Lam, and S.M. Chan validated the data. J.S.R. Duque, G.T. Chua, K.N. Cheong, E.Y.L. Au, J.S.Y. Kwok, P.C.Y. Chong, P.P.W. Lee, M.H.K. Ho, T.L. Lee, and Y.L. Lau provided clinical care. D. Leung wrote the first draft supervised by Y.L. Lau, with input from J.S. Rosa Duque, X. Mu, and S.M.S. Cheng. All authors reviewed and approved the final manuscript.