The Flu is caused by any one of many Influenza Viruses.
Signs and symptoms usually come on suddenly, and can include some or all of the following:
- sore throat,
- body aches
- runny/stuffy nose
Most healthy people who get the flu will recover in a week or two. However, some people will develop life-threatening complications such as pneumonia. The flu can worsen existing health problems like asthma, diabetes and congestive heart failure. Other complications caused by flu include bronchitis, sinus infections and ear infections.