how long to get flu after exposure
Save. Flu symptoms can be seen as early as one day after exposure or as late as five days. Once symptoms occur, it is best to consult your doctor. The elderly and young children are more susceptible to the disease and are more likely to die from it.So early detection and treatment for them is critical.he flu is really called influenza and it is a very contagious infection of the lungs, throat and nose. Symptoms include muscle aches, fever, sore throat, runny nose, cough and headache. Because the flu has a tendency to change, it can be hard to treat and has caused pandemics in the past such as in 1918 and 1957.