MUC5AC and infection: ,56 Our study revealed that Salmonella recovered from dried sessile and velocity-impacted mucin (0.1 and 0.6 wt %) droplets are prone to phagocytosis by RAW264.7 cells compared to the planktonic culture (Figures 5A and S5A), suggesting a better clearance of the bacteria and subsequent restriction of the infection by macrophages.