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Influenza virus particle and life cycle
Virus classification Edit this classification
(unranked): Virus
Realm: Riboviria
Kingdom: Orthornavirae
Phylum: Negarnaviricota
Class: Insthoviricetes
Order: Articulavirales

Articulavirales is an order of segmented negative-strand RNA viruses which infect invertebrates and vertebrates.[2] It includes the family of influenza viruses which infect humans. It is the only order of viruses in the monotypic class Insthoviricetes.[3] The order contains two families and eight genera.[1] Metatranscriptomics of aquatic animal samples paired with phylogenetics suggests that Articulavirales exhibits complex cross-species virus transmission and virus-host co-divergence over deep evolutionary time scales. Potentially originating in ancient aquatic animals at least 600 Mya.[4]


The order name Articulavirales derives from Latin articulata meaning "segmented" (alluding to the segmented genome of member viruses) added to the suffix for virus orders -virales.[3] The class name Insthoviricetes is a portmanteau of member viruses "influenza, isavirus, and thogotovirus" added to the suffix -viricetes for virus classes.[3]


Member viruses have segmented, negative-sense, single-stranded RNA genomes.[2]


The order Articulavirales contains two families and eight genera:[1]


  1. ^ a b c "Virus Taxonomy: 2018 Release". International Committee on Taxonomy of Viruses (ICTV). Archived from the original on 4 March 2018. Retrieved 13 January 2019.
  2. ^ a b Wolf, Yuri I.; Kazlauskas, Darius; Iranzo, Jaime; Lucía-Sanz, Adriana; Kuhn, Jens H.; Krupovic, Mart; Dolja, Valerian V.; Koonin, Eugene V. (2018-12-21). "Origins and Evolution of the Global RNA Virome". mBio. 9 (6). doi:10.1128/mBio.02329-18. ISSN 2150-7511. PMC 6282212. PMID 30482837.
  3. ^ a b c Wolf, Yuri; Krupovic, Mart; Zhang, Yong Zhen; Maes, Piet; Dolja, Valerian; Koonin, Eugene V.; Kuhn, Jens H. "Megataxonomy of negative-sense RNA viruses". International Committee on Taxonomy of Viruses (ICTV). Archived from the original (docx) on 13 January 2019. Retrieved 12 January 2019.
  4. ^ Petrone ME, Parry R, Mifsud JCO, Van Brussel K, Vorhees IEH, Richards ZT; et al. (2023). "Evidence for an ancient aquatic origin of the RNA viral order Articulavirales". Proc Natl Acad Sci U S A. 120 (45): e2310529120. doi:10.1073/pnas.2310529120. PMC 10636315. PMID 37906647.{{cite journal}}: CS1 maint: multiple names: authors list (link)