| AA | Amino acid |
| CDR | Complementarity-determining region |
| CV-A6 | Coxsackievirus A6 |
| HFMD | Hand, foot, and mouth disease |
| EV | Enterovirus |
| ML | Maximum likelihood |
| NT | Nucleotide |
| ORF | Open reading frame |
| RF | Recombinant forms |
| Thr | Threonine |
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