Leviviricetes: expanding and restructuring the taxonomy of bacteria-infecting single-stranded RNA viruses

Review Microbiology

Biases in Viral Metagenomics-Based Detection, Cataloguing and Quantification of Bacteriophage Genomes in Human Faeces, a Review

Julie Callanan et al.

Summary: The human gut is colonized by a diverse range of microbes, including viruses, which have recently attracted more attention in research. Different viral extraction protocols used in studies can introduce biases affecting overall conclusions, highlighting the need for clearly outlining protocol variations and perhaps establishing an unbiased and standardized method for examining the viral component of the human microbiome.

MICROORGANISMS (2021)

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Article Virology

Changes to virus taxonomy and to the International Code of Virus Classification and Nomenclature ratified by the International Committee on Taxonomy of Viruses (2021)

Peter J. Walker et al.

Summary: This article reports the changes to virus taxonomy approved and ratified by ICTV in March 2021. All proposals and revisions were passed by an absolute majority of ICTV members. ICTV mandated a new uniform rule for virus species naming, abolished the notion of a type species, and clarified its remit through an official definition of 'virus' and other types of mobile genetic elements.

ARCHIVES OF VIROLOGY (2021)

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Editorial Material Virology

Adnaviria: a New Realm for Archaeal Filamentous Viruses with Linear A-Form Double-Stranded DNA Genomes

Mart Krupovic et al.

Summary: The ICTV has established a new virus realm, Adnaviria, which unifies archaeal filamentous viruses with linear A-form double-stranded DNA genomes and characteristic major capsid proteins. This realm is considered monophyletic and distinct from other known virus realms.

JOURNAL OF VIROLOGY (2021)

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Review Microbiology