Most individuals have experienced at least a mild version of the flu at some point in their life. Every year, somewhere between 3 and 11 percent of the US population will contract the flu virus.
Typical flu symptoms include fever, chills, sore throat, runny or stuffy nose, cough, head and body aches, or fatigue. It’s common for an infected individual to have only a few of these symptoms manifest strongly, and not everyone will experience every single symptom. It’s also common to confuse the flu with the common cold, especially as not everyone with the flu will experience a fever – a symptom considered a hallmark of the virus. But, the flu differs from the cold as it tends to come on more suddenly. The onset of these symptoms is usually two days but can range from one to four days.