It has become increasingly obvious in recent years that bactrial viruses in particular often confer serious advantages on their hosts - and are less parasites than symbiotes.
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A phage takes the wheel
Nature Microbiology, Published online: 19 June 2026; doi:10.1038/s41564-026-02405-4Prophage FRφ rewires the flagellar apparatus of its Enterobacter sp. host through RNA-guided repression of native flagellin, favouring its own phage-encoded isoform. This enhances host motility and reduces immune recognition, boosting bacterial fitness in mice.
