Author contributions
D.K.
P.S.K., B.G., C.B., D.K., and C.S.P. contributed to the study design and protocol development. P.S.K., B.G. and D.K. accessed and verified the data. R.S.S. and P.B. performed statistical analysis. P.S.K., B.G., D.K., and A.D. contributed to the manuscript preparation. Manuscript was finalized with considerable inputs from all the authors. S.K. (Sunil Kohli), S.L., S.T., S.K. (Sonali Kar), S.R., P.K., A.A., A.B., and H.L.B. contributed to the data collection. U.S. and M.G. contributed to immunogenicity experiments oversight and supervision. J.S.P., M.Z., S.C.C., R.K., M.P., S.H. and M.T. contributed to the immunogenicity experiments.