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Virus classification e
(unranked): Virus
Realm: Riboviria
Kingdom: Orthornavirae
Phylum: Pisuviricota
Class: Pisoniviricetes
Order: Nidovirales
Family: Coronaviridae
Subfamily: Letovirinae
Lower taxa

Genus: Alphaletovirus
Subgenus: Milecovirus
Species: Microhyla letovirus 1

Letovirinae is a subfamily of viruses within the family Coronaviridae, where it is the only subfamily besides the more diverse Orthocoronavirinae (coronaviruses). Letovirinae contains one accepted genus, Alphaletovirus, which contains one accepted subgenus, Milecovirus, which contains one accepted species, Microhyla letovirus 1 (MLeV).[1] This species was discovered in 2018 and is hosted by the ornate chorus frog (Microhyla fissipes).[2]

A second, as of yet unaccepted species in the Letovirinae has been discovered in Pacific salmon (Oncorhynchus).[3]


  1. ^ "Virus Taxonomy: 2018b Release".
  2. ^ Bukhari, Khulud; Mulley, Geraldine; Gulyaeva, Anastasia A.; Zhao, Lanying; Shu, Guocheng; Jiang, Jianping; Neuman, Benjamin W. (2018). "Description and initial characterization of metatranscriptomic nidovirus-like genomes from the proposed new family Abyssoviridae, and from a sister group to the Coronavirinae, the proposed genus Alphaletovirus". Virology. 524: 160–171. doi:10.1016/j.virol.2018.08.010. PMC 7112036. PMID 30199753.
  3. ^ Gideon J Mordecai, Kristina M Miller, Emiliano Di Cicco, Angela D Schulze, Karia H Kaukinen, Tobi J Ming, Shaorong Li, Amy Tabata, Amy Teffer, David A Patterson, Hugh W Ferguson, Curtis A Suttle (2019). "Endangered wild salmon infected by newly discovered viruses" (PDF). eLife. 8: e47615. doi:10.7554/eLife.47615.001. PMC 6721791. PMID 31478480.CS1 maint: multiple names: authors list (link)

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