MUC5AC and infection: Other host cell molecules, including folate receptor-α26, Tyro3 family molecules27, T-cell immunoglobulin and mucin domain 128, and other C-type lectins12–18 expressed on the initial target cells of filovirus (e.g. monocyte/macrophage, DCs, hepatocytes, sinusoidal endothelial cells) are reported to be involved in the initiation of infection.