The interaction between viruses and dendritic cells (DCs) is varied and com
plex. DCs are key elements in the development of a host response to pathoge
ns such as viruses, but viruses have developed survival tactics to either e
vade or diminish the immune system that functions to kill and eliminate the
se micro-organisms. In the present review we summarize current concepts reg
arding the function of DCs in the immune system, our understanding of how v
iruses alter DC function to attenuate both the virus-specific and global im
mune response, and how we may be able to exploit DC function to prevent or
treat viral infections.