Influenza (Flu) – Causes & Symptoms

The flu is an unpleasant but short-term illness that most healthy people will recover from easily. Influenza Symptoms often appear one to four days after virus exposure and last for five to seven days. Although the flu might be unpleasant, it is rarely fatal. It’s common to confuse the flu with a bad cold. A runny nose, sore throat, and cough are common flu and cold symptoms.