English: erpentovirus phylogeny reveals implications regarding species susceptibility to infection and disease. Snake IDs are indicated by collection letter (A–L) and number followed by genus and species. Snake families are indicated to the right: Python (Pythonidae, purple), Boa (Boidae, orange), Colubrid (Colubridae, green), and Homalopsid (Homalopsidae, blue). Reference sequences identified in previous studies and available in GenBank (double asterisks: **) are indicated by accession number followed by the genus and species of the host, except snake-associated nematode viruses in which the host species was unknown.