As shown in Table , the SARS-COV-2 virus structural proteins (S, E, M, N) and non-structural proteins (ORF3a, ORF6, ORF7a, ORF7b, ORF8, ORF10, and ORF1ab) contain the TryThrA_C domain of the malaria parasite antigen. The TryThrA_C domain (PF12319) is at the C-terminus of the Plasmodium malaria surface antigen. Plasmodium antigens with a high tryptophan-threonine content (TryThrA) are typically between 254 and 536 amino acids in length. S, M, N, ORF3a, ORF7a, and ORF8 are longer than ORF6, ORF7b, ORF10, and E.