International Committee on Taxonomy of Viruses
ICTV Talk Home
Welcome to ICTVonline!
Select the "Discussions" menu above to contribute to ICTV discussions.
(You must first create a user account in order to contribute to discussions. Select "Join" in the upper right hand corner of this page to create an account. Or select "Sign In" if you already have an account.)
Select the "ICTV Files" menu above to access Taxonomic Proposals and ICTV-related files.
Select the "Study Groups" menu above to access information provided by ICTV virus family Study Groups.
**New: ICTV 2014 Official Taxonomy **
The 2014 ICTV taxonomy is now available online at
ICTV Master Species List for 2014
is available for download as an Excel Spreadsheet.
A reference for these taxonomic proposals can be found in Archives of Virology:
"Ratification vote on taxonomic proposals to the International Committee on Taxonomy of Viruses (2015)"
. Arch Virol. 2015 Apr 28. PMID: 25913692.
Official taxonomy proposals representing all of the taxonomic changes approved by the ICTV since the publication of the ICTV 8th Report can be found here:
Submitting Taxonomic Proposals
ICTV welcomes taxonomic proposals from any interested individual. To submit a proposal, download and complete the relevant parts of the taxonomic template (available at
) and e-mail it to the appropriate subcommittee chair (Animal DNA Viruses and Retroviruses, Animal dsRNA and ssRNA- Viruses, Animal ssRNA+ Viruses, Bacterial and Archaeal Viruses, Fungal and Protist Viruses, or Plant viruses). Names and e-mail addresses can be found at
Additional ICTV Information
Click to navigate to the ICTV Web Portal
The ICTV Ninth Report
Congratulations to everyone involved in this monumental effort. Preparation of the Ninth Report has encompassed 6 years of work, and has involved hundreds of virologists putting together the most up-to-date internationally accepted taxonomy and nomenclature of all viruses. At 1327 pages, it is the largest report ICTV has ever published including 6 orders, 87 families, 19 subfamilies, 349 genera and 2284 virus and viroid species. It can be ordered from
ICTV gratefully acknowledges financial support from the
American Society for Virology (USA)
Society for General Microbiology (UK)
, and the
Virology Division of IUMS
. ICTV also very gratefully acknowledges the support it receives from all its Executive Committee members, Study Group members and National Representatives who volunteer a huge amount of their time and financial support to ensure that ICTV continues to function for the good of virology.
2014 ICTV Newsletter #12, May 2015
9 months ago
ICTV Master Species List 2014 v4
11 months ago
New MSL (MSL #29) including all taxa updates since the 2013 release. This MSL provides updates approved during EC 46, in Montreal, Canada, July 2014, and...
11 months ago
**Revised February 2015!** Template for preparing ICTV taxonomy proposals, including modules for creation of a new Order, Family, Subfamily, Genus, and...
Copyright © 2016, International Committee on Taxonomy of Viruses (ICTV)