What are the symptoms?
Unlike a cold, flu symptoms start suddenly. They appear about 1-4 days after a person is exposed to the flu. Symptoms may include:
- Fever or feeling feverish/chills.
- Cough
- Sore throat
- Runny or stuffy nose
- Muscle or body aches
- Headache
- Tiredness
- Some people may have vomiting or diarrhea; this is more common in children.
