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: July 11, 2018
Viral classificationNo. of uniq tax idHost classificationNo. of uniq tax id
dsRNA335 Bacteria 5
Eukaryota330
Archaea 0
Viruses 0
Unassigned/Other0
dsDNA3648 Bacteria 2539
Eukaryota1014
Archaea 82
Viruses 3
Unassigned/Other11
ssRNA2859 Bacteria 19
Eukaryota2776
Archaea 0
Viruses 3
Unassigned/Other64
ssDNA1428 Bacteria 121
Eukaryota1175
Archaea 1
Viruses 1
Unassigned/Other130
Retrovirus38 Bacteria 0
Eukaryota28
Archaea 0
Viruses 0
Unassigned/Other10
Satellite virus and Virophage283 Bacteria 0
Eukaryota238
Archaea 0
Viruses 33
Unassigned/Other37
Viroid66 Bacteria 0
Eukaryota59
Archaea 0
Viruses 0
Unassigned/Other7
Other1445 Bacteria 61
Eukaryota299
Archaea 15
Viruses 0
Unassigned/Other1070
RefSeq
GenBank
Viral entries
(No. of sequence accessions)
12625
Source of host information (No. of evidence records)
RefSeq + GenBank UniProt Viral Zone Manual annotation Total
7757 1606 198 2687 12495