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 04, 2018
Viral classificationNo. of uniq tax idHost classificationNo. of uniq tax id
dsRNA371 Bacteria 5
Eukaryota363
Archaea 0
Viruses 0
Unassigned/Other3
dsDNA3739 Bacteria 2579
Eukaryota1060
Archaea 83
Viruses 3
Unassigned/Other15
ssRNA3026 Bacteria 18
Eukaryota2952
Archaea 0
Viruses 3
Unassigned/Other56
ssDNA1630 Bacteria 119
Eukaryota1366
Archaea 1
Viruses 1
Unassigned/Other145
Retrovirus39 Bacteria 0
Eukaryota29
Archaea 0
Viruses 0
Unassigned/Other10
Satellite virus and Virophage321 Bacteria 0
Eukaryota283
Archaea 0
Viruses 30
Unassigned/Other33
Viroid66 Bacteria 0
Eukaryota59
Archaea 0
Viruses 0
Unassigned/Other7
Other1405 Bacteria 21
Eukaryota367
Archaea 15
Viruses 0
Unassigned/Other1066
RefSeq
GenBank
Viral entries
(No. of sequence accessions)
13280
Source of host information (No. of evidence records)
RefSeq + GenBank UniProt Viral Zone Manual annotation Total
8213 1577 200 2654 13106