List of virus taxa


This is a taxonomic list of all viruses as of 2018 listed by the International Committee on Taxonomy of Viruses. Though not used by the ICTV, the traditional Baltimore classification, which groups viruses together based on how they produce mRNA, is used in conjunction with the ICTV's work in modern virus classification.
Note that ICTV assesses other non-cellular life besides viruses, and below are two viroid families of uncertain placement: Avsunviroidae and Pospiviroidae. Other subviral agents such as fungal prions, vertebrate prions, satellites, and virus-dependent nucleic acids may be featured in future taxonomic treatments.

''Negarnaviricota''