The flu virus can live on a persons skin for up to 24 hours so be sure to wash your hands often with antibacterial soap and water as hot as you can stand to so you can kill off the viruses to prevent them from spreading.
Flu viruses live much shorter lives on things such as tissues and other cloth and only live up to 15 to 20 minutes on the tissues or cloths.
Washing your hands often and even showering twice per day when sick with the flu and washing your whole body with antibacterial soap can kill off the viruses that are living on your body.