OMG SERVICE ANNOUNCEMENT: Hand sanitizers DO NOT kill viruses, including H1N1 (swine flu), regular flu, and the common cold.
You still need to wash your hands. I am starting to get really grossed out by the idea that everyone thinks Purell is an appropriate substitution for hand washing.
If you have been handling poop or raw chicken, then sanitizers are great. Otherwise, please get to a sink! (Source)