how long are you contagious with influenza a if you are taking tamiflu
This particular time gap is called the incubation period of a disease. The flu incubation period may last for 1-4 days, depending upon the overall health of the infected person. Also, the influenza is contagious even before the symptoms appear, i.e., 1 day prior to exhibiting notable symptoms. Thus, an infected person can pass on the virus to others, without knowing that he/she has been infected.