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Schematic diagram of the chimeric M2 HEV ORF 2 capsid protein; (a) 3D modeling of M2 HEV ORF 2 capsid protein by SWISS MODEL; (b) Insertion of 24 amino acid residues of Influenza A virus M2 peptide at the position Gly556 (red) on the P domain of HEV ORF2 capsid protein.
