how soon do flu symptoms appear after exposure
You may also wonder how long it takes to get sick after you have been exposed and how long you are contagious when you have it. Flu Incubation Period. The typical flu incubation periodâthe time between exposure and the start of symptomsâis between 24 hours and four days, with the average being two days. This means that if you are exposed to the influenza virus and become infected, you will start to experience flu symptoms anywhere between 24 hours and four days after the exposure.