Virus-Host DB organizes data about the relationships between viruses and their hosts, represented in the form of pairs of NCBI taxonomy IDs for viruses and their hosts. Virus-Host DB covers viruses with complete genomes stored in 1) NCBI/RefSeq and 2) GenBank whose accession numbers are listed in EBI Genomes. The host information is collected from RefSeq, GenBank (in free text format), UniProt, ViralZone, and manually curated with additional information obtained by literature surveys.

Selected viral families
Adenoviridae Papillomaviridae Herpesviridae
Baculoviridae Poxviridae Parvoviridae
Retroviridae Reoviridae Picornaviridae
Flaviviridae Caliciviridae Coronaviridae
Bunyaviridae Orthomyxoviridae Paramyxoviridae
Annotated virusesLast Update: November 22, 2017
Viral classificationHost classification
dsRNA323 Bacteria 6
Eukaryota318
Archaea 0
Viruses 0
Unassigned/Other0
dsDNA3614 Bacteria 2534
Eukaryota995
Archaea 77
Viruses 1
Unassigned/Other12
ssRNA2815 Bacteria 19
Eukaryota2645
Archaea 0
Viruses 1
Unassigned/Other151
ssDNA1326 Bacteria 118
Eukaryota1095
Archaea 1
Viruses 1
Unassigned/Other112
Retrovirus226 Bacteria 0
Eukaryota207
Archaea 0
Viruses 0
Unassigned/Other19
Satellite virus and Virophage281 Bacteria 0
Eukaryota234
Archaea 0
Viruses 36
Unassigned/Other39
Viroid66 Bacteria 0
Eukaryota59
Archaea 0
Viruses 0
Unassigned/Other7
Other1377 Bacteria 70
Eukaryota1176
Archaea 18
Viruses 2
Unassigned/Other111
RefSeq
GenBank
Viral entries
12521
Source of host information (No. of entries)
RefSeq + GenBank UniProt Viral Zone Manual annotation Total
8478 1604 198 2534 12254