Nucleotide Sequences
| echovirus e21 | homo sapiens | China | Homo sapiens | 399226923 |
| echovirus e21 | homo sapiens | China | Homo sapiens | 399226925 |
| echovirus e21 | homo sapiens | China | Homo sapiens | 348161264 |
| echovirus e21 | homo sapiens | China | Homo sapiens | 348161262 |
| echovirus e21 | homo sapiens | China | Homo sapiens | 254973404 |
| echovirus e21 | homo sapiens | China | Homo sapiens | 254973402 |
| echovirus e21 | homo sapiens | China | Homo sapiens | 254973400 |
| echovirus e21 | homo sapiens | China | Homo sapiens | 254973398 |