Month: April 2026

Host-anellovirus interactions in an island ecosystem: non-human primates and rodents in Madagascar harbour diverse, rich anellovirus populations

Microb Genom. 2026 Apr;12(4):001681. doi: 10.1099/mgen.0.001681. ABSTRACT Anelloviruses are circular, negative-sense single-stranded DNA viruses that have remarkable diversity and ubiquity across mammals. However, few studies have attempted to determine anellovirus diversity and dynamics across a biodiverse landscape. Madagascar offers a unique opportunity to study anellovirus diversity, with speciose, endemic mammalian lineages that have evolved in … Read more

ICTV Virus Taxonomy Profile: Anelloviridae 2026

J Gen Virol. 2026 Mar;107(3):002222. doi: 10.1099/jgv.0.002222. ABSTRACT The family Anelloviridae includes viruses with circular, negative-sense, ssDNA genomes of 1.7-3.9 kb. Anelloviruses form non-enveloped icosahedral virions constructed of the ORF1 protein, which adopts the single jelly-roll structural fold. Anelloviruses have been isolated from a broad range of birds and mammals, including humans, but are not … Read more

Complete mitochondrial DNA sequences of Eliurus webbi and Eliurus minor, endemic tufted-tailed rats in Madagascar

Mitochondrial DNA B Resour. 2026 Mar 23;11(4):561-566. doi: 10.1080/23802359.2026.2638673. eCollection 2026. ABSTRACT The Webb’s tufted-tailed rat (Eliurus webbi) and the lesser tufted-tailed rat (Eliurus minor) are nocturnal and primarily arboreal rodents native to Madagascar, classified in the subfamily Nesomyinae. After species confirmation using cytochrome b, we assembled the first complete mitogenomes of E. webbi (n … Read more

Turbulent dynamo in the terrestrial magnetosheath

Nat Commun. 2026 Feb 18;17(1):2909. doi: 10.1038/s41467-026-69469-y. ABSTRACT Dynamo action refers to energy exchange processes through which magnetic fields are generated at the expense of kinetic energy of the plasma flows. Dynamos can generate magnetic fields across scales larger or smaller than the flows themselves. Multi-scale dynamo processes underpin magnetic phenomena from planetary cores to … Read more

Metagenome-assembled genomes of anelloviruses in crowned lemur and aye-aye swabs

Microbiol Resour Announc. 2026 Mar 12;15(3):e0147325. doi: 10.1128/mra.01473-25. Epub 2026 Feb 18. ABSTRACT Two circular, complete genomes of anelloviruses were identified from a crowned lemur anal swab and an aye-aye skin swab from individuals at the Duke Lemur Center (Durham, NC, USA). The anelloviruses represent two species in the Anelloviridae family and expand a developing … Read more

Changes to virus taxonomy, the international code of virus classification and nomenclature, and the ICTV statutes ratified by the International Committee on Taxonomy of Viruses (2025)

Arch Virol. 2025 Dec 18;171(1):23. doi: 10.1007/s00705-025-06485-1. ABSTRACT The 56th meeting of the Executive Committee (EC) of the International Committee on Taxonomy of Viruses (ICTV) was held in Bari, Italy, in July/August, 2024, and 115 submitted taxonomy proposals were reviewed. A total of 112 were subsequently ratified by the ICTV membership. An additional 9 error … Read more

Population ecology and biogeochemical implications of ssDNA and dsDNA viruses along a permafrost thaw gradient

Nat Commun. 2025 Dec 11;17(1):375. doi: 10.1038/s41467-025-67057-0. ABSTRACT Anthropogenic-driven climate change is accelerating permafrost thaw, threatening to release vast carbon stores through increased microbial activity. While microbial roles are increasingly studied, the contributions of viruses remain largely unexplored, in part due to soil-associated technical challenges that have hindered their detection and characterization. Here, we applied … Read more

Novel circoviruses identified in short-finned pilot whale and orca from the North Atlantic Ocean

Virology. 2026 Feb;615:110768. doi: 10.1016/j.virol.2025.110768. Epub 2025 Dec 5. ABSTRACT The family Circoviridae comprises viruses with small single-stranded DNA genomes that are known to infect various animals, resulting in considerable morbidity and mortality in some hosts. Circoviruses have been recently identified through metagenomic sequencing in diverse terrestrial vertebrate species, but their distribution and diversity in … Read more

Early-life infection dynamics and genomic diversity of adenoviruses in a wild primate (Theropithecus gelada)

Microb Genom. 2025 Dec;11(12):001595. doi: 10.1099/mgen.0.001595. ABSTRACT In humans, adenoviruses (AdVs) are frequently associated with respiratory illnesses, posing risks to children with developing immune systems and immunocompromised individuals. Outbreaks and epidemics are generally centred in close-contact settings, such as childcare facilities, and transmission occurs through faecal-oral and airborne pathways. AdVs have coevolved across the primate … Read more