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: December 12, 2018
Viral classificationNo. of uniq tax idHost classificationNo. of uniq tax id
dsRNA373 Bacteria 5
Eukaryota365
Archaea 0
Viruses 0
Unassigned/Other3
dsDNA3737 Bacteria 2579
Eukaryota1059
Archaea 83
Viruses 6
Unassigned/Other15
ssRNA3026 Bacteria 18
Eukaryota2955
Archaea 0
Viruses 3
Unassigned/Other53
ssDNA1630 Bacteria 119
Eukaryota1366
Archaea 1
Viruses 14
Unassigned/Other145
Retrovirus39 Bacteria 0
Eukaryota29
Archaea 0
Viruses 0
Unassigned/Other10
Satellite virus and Virophage321 Bacteria 0
Eukaryota284
Archaea 0
Viruses 30
Unassigned/Other32
Viroid66 Bacteria 0
Eukaryota59
Archaea 0
Viruses 0
Unassigned/Other7
Other1406 Bacteria 21
Eukaryota316
Archaea 15
Viruses 0
Unassigned/Other1066
RefSeq
GenBank
Viral entries
(No. of sequence accessions)
13282
Source of host information (No. of evidence records)
RefSeq + GenBank UniProt Viral Zone Manual annotation Total
8218 1577 200 2671 13112