Video S6 Live-cell microscopy video demonstrating that the V. anguillarum Dwzt mutant carrying the wild-type wzt gene regains the ability to evade phagocytosis by the rainbow trout skin epithelial cells. Skin epithelial cells were isolated from rainbow trout and infected with 105 bacteria ml21. Following infection, phagocytic activities of motile epithelial cells were tracked using live-cell microscopy. This video is representa- tive of epithelial cell interactions also associated with the Dwzm and DwbhA mutants carrying the respective complementing wild- type gene. All three complemented mutant strains regained the ability to evade phagocytosis. (MP4) Video S7 Live-cell microscopy video demonstrating that mannose blocks phagocytosis of the V. anguillarum Dwzt mutant by rainbow trout skin epithelial cells. Rainbow trout skin epithelial cells were isolated and incubated with 1 mM mannose prior to infection with 105 bacteria ml21. 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