Many people suffer from many kinds of viruses that don’t have a vaccine or a specific drug to cure it, such as Herpes, West Nile Virus, and Dengue Fever.  The specialty of functional virology looks at the type of virus, then through clinical experience and scientific studies devises protocols that improve immunity, prevent infection, and in the event of infection prevent viral replication.  Functional medicine uses mostly nutritional supplements herbs that have been scientifically proven to improve the function of your immune system and other critical systems to reduce your risk of fatality.