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(A) Secondary structure of an antigenomic human hepatitis delta virus ribozyme (HDVR) sequence (GenBank accession number MG711754.1). The secondary structure of the antigenomic (left) and genomic (right) HDVRs present in HDV-like genomes of (B) newt and (C) a mix of fish. Sequence identity between the antigenomic HDVRs from human HDV and the newt HDV-like agent are highlighted in red nucleotides.
