FluComplications

Health

How Long Is the Flu Contagious?

The Contagious Period of the Flu The flu is a highly contagious respiratory illness caused by influenza viruses. It spreads from person to person through droplets that are produced when an infected person talks, coughs, or sneezes. These droplets can land on the mouths or noses of people who are nearby, or be inhaled into the lungs. The contagious period…