Fig. 3: Schematic illustration of different motility modes.
From: Virion motility of sialoglycan-cleaving respiratory viruses

a Random IAV motion over short distances occurs in absence of NA activity. b In presence of receptor-destroying activity, spherical or short cylindrical IAV or ICV particles show fast directional motility alternating with periods of random motion that may result in a shift of direction. c Filamentous IAV particles display crawling motion. d ICV filament rolls over their longitudinal axis (indicated by the thin bended arrows) and display change of direction by flapping (indicated by the thick bended arrow). Created in BioRender. Liu, M. (2025) https://BioRender.com/kxmkvsn.