Conflict of interest
AT, ID, AD, DG, OZ, AE, OP, TO, FI, DS, IE, ET, NN, NL, BN, DL and AG report the patents for an immunobiological expression vector, pharmaceutical agent, and a method-of-use to prevent COVID-19.The remaining authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.