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: May 18, 2018
Viral classificationNo. of uniq tax idHost classificationNo. of uniq tax id
dsRNA331 Bacteria 5
Eukaryota326
Archaea 0
Viruses 0
Unassigned/Other0
dsDNA3648 Bacteria 2537
Eukaryota1015
Archaea 82
Viruses 3
Unassigned/Other11
ssRNA2856 Bacteria 19
Eukaryota2762
Archaea 0
Viruses 2
Unassigned/Other75
ssDNA1428 Bacteria 121
Eukaryota1175
Archaea 1
Viruses 1
Unassigned/Other130
Retrovirus227 Bacteria 0
Eukaryota214
Archaea 0
Viruses 0
Unassigned/Other13
Satellite virus and Virophage281 Bacteria 0
Eukaryota235
Archaea 0
Viruses 35
Unassigned/Other38
Viroid66 Bacteria 0
Eukaryota59
Archaea 0
Viruses 0
Unassigned/Other7
Other1258 Bacteria 63
Eukaryota1089
Archaea 15
Viruses 0
Unassigned/Other91
RefSeq
GenBank
Viral entries
(No. of sequence accessions)
12613
Source of host information (No. of evidence records)
RefSeq + GenBank UniProt Viral Zone Manual annotation Total
8553 1603 198 2670 12458