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Electron micrographs show that mouse and rat segmented filamentous bacterium (SFB) unicellular intracellular offspring (IO) are flagellated and that flagellation occurs before IO release from SFB filaments.
Resistance to baloxavir marboxil, a recently approved drug to treat influenza infection, was thought to make the virus less fit. This study reports that resistant viruses isolated from Japanese patients have normal replicative abilities and pathogenicity in animal models and thus might spread in humans.
A statistical analysis of the associations between virus structure and virus transmission suggests that virus structures limit viral transmission routes and have implications for infection prophylaxis and gene therapy strategies.
A comparative transcriptional analysis identifies human HLA-DR as a factor that mediates entry of bat influenza A-like H17-pseudotyped viral particles into mammalian cells.
Idionectes vortex is a flagellated unicellular microbial eukaryote with a unique mode of motility; it resembles a doughnut-shaped object that swims by continuous inversion of its surface, similar to a vortex ring.
The authors report the development of a Madin-Darby canine kidney (MDCK) cell line that is more suitable than conventional MDCK or human virus receptor-overexpressing cells for the isolation and propagation of human influenza viruses without cell culture-adaptive mutations.
Adaptive laboratory evolution experiments in Escherichia coli show that the pseudogene efeU can be repaired to restore the bacterium’s iron uptake system, demonstrating that pseudogenes may serve as an ‘adaptive repertoire’ of selectable traits.