People who contract influenza from a virus often get ill suddenly and have a fever, cough and body aches.
Influenza can lead to serious complications such as pneumonia and death.
Influenza is not the same as gastroenteritis or stomach flu. If you are 50 years of age or older, you should get an influenza vaccination every year . If you currently have a fever, you should wait until you are well. You should get it every year before the influenza season begins. The best time to get your vaccination is between October 1 and mid-November.