Viral Host Range database, a resource for virus-host interactions studies

How do I search for the host of a virus? If answering this question is trivial for some human pathogenic viruses, it is more puzzling for viruses in general. The Viral Host Range database (VHRdb) gives access to the experimental data to answer this question. The aim of the VHRdb is to provide to the community the data generated by scientists documenting the host range of their favorite virus through an easy (copy/paste) contribution process including benefits. Indeed, VHRdb integrates analysis tools to compare experimental datasets in many ways. Searching for the host range of a virus, or the other way around has never been easier!

By sharing host range tests published but yet not in a searchable format, you will give a new value to your work and prevent scientists to perform the same tests again and again.

When appropriate, please do not forget to cite our work.

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Recently updated data sources

Host range of phages isolated from a smear-ripened cheese (From PAILLET Thomas, March 29, 2023)
The spot assay experiment was realised by T. Paillet in the SayFood lab. 5μL of a phage solution were spotted on a lawn of bacteria. The results were assessed visually by the presence of plaques. The phages and hosts tested were isolated by T. Paillet fro
11 Phages host range against 32 Phytopathogen Pseudomonas syringae pathovar phaseolicola and pathovar actinidiae (From MARTINO Gabriele, Jan. 13, 2022)
The experiment was realized by Gabriele Martino and Marina Ciuffo (, were originally isolated using Pseudomonas syringae pv. actinidiae (Psa) strain K7#8 and Pseudomonas syringae pv
vB_SauM-fRuSau02 against Staphyloccocus strains (From KILJUNEN Saija, Jan. 12, 2022)
The phage host range was analyzed by either a spot assay or by a liquid culture method. The full method is published in Leskinen et al., Viruses 2017, 9, 258; doi:10.3390/v9090258.
Staphyloccocus phages phiIPLA-RODI and phiIPLA-C1C against staphylococcal isolates (From LAMY-BESNIER Quentin, May 25, 2021)
Method: Bacteriophage host ranges were determined using phiIPLARODI (10^9 PFU/mL) and phiIPLA-C1C (10^9 PFU/mL) in the drop test, and titrations of the phages were further carried out with all sensitive strains to differentiate between infection and lysis