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: September 20, 2018
Viral classificationNo. of uniq tax idHost classificationNo. of uniq tax id
dsRNA335 Bacteria 5
Eukaryota330
Archaea 0
Viruses 0
Unassigned/Other0
dsDNA3653 Bacteria 2540
Eukaryota1019
Archaea 82
Viruses 3
Unassigned/Other10
ssRNA2868 Bacteria 18
Eukaryota2799
Archaea 0
Viruses 3
Unassigned/Other51
ssDNA1436 Bacteria 119
Eukaryota1185
Archaea 1
Viruses 1
Unassigned/Other130
Retrovirus38 Bacteria 0
Eukaryota28
Archaea 0
Viruses 0
Unassigned/Other10
Satellite virus and Virophage284 Bacteria 0
Eukaryota239
Archaea 0
Viruses 33
Unassigned/Other37
Viroid66 Bacteria 0
Eukaryota59
Archaea 0
Viruses 0
Unassigned/Other7
Other1421 Bacteria 58
Eukaryota280
Archaea 15
Viruses 0
Unassigned/Other1068
RefSeq
GenBank
Viral entries
(No. of sequence accessions)
12543
Source of host information (No. of evidence records)
RefSeq + GenBank UniProt Viral Zone Manual annotation Total
7675 1521 198 2672 12429