Influenza is a common and frequently debilitating condition.
Patients who are considered to be at high risk of developing complications of influenza or of suffering exacerbation of their underlying disease are generally offered vaccination in an attempt to prevent infection. However, such approaches are not fully effective. A and B viruses tested. Delivered directly to the major site of viral replication, the epithelial cells of the respiratory tract, it significantly shortens the clinical course of influenza and rapidly reduces the severity of symptoms compared with placebo. These symptoms include fever, chills, myalgia, headache, sore throat and cough.