Influenza (commonly called the “flu”) is a contagious respiratory illness caused by influenza viruses. The information below describes common flu symptoms, how to protect yourself and those close to you from getting the flu, and what to do if you get sick with flu-like symptoms.
Be Aware of Common Flu Symptoms
Influenza usually starts suddenly and may include the following symptoms:
- Fever (usually high)
- Tiredness (can be extreme)
- Sore throat
- Runny or stuffy nose
- Body aches
- Diarrhea and vomiting (more common among children than adults)
Having these symptoms does not always mean that you have the flu. Many different illnesses, including the common cold, can have similar symptoms.