Influenza, commonly referred to as “the flu”, is a serious respiratory disease that is caused by a virus. To learn more about seasonal flu click here.
Although most people who get it are sick for a short time, some people can get much sicker and need to go the emergency room or visit their doctor.
Illness caused by the flu usually lasts 2 to 7 days; sometimes longer in the elderly and in people with chronic diseases. Sometimes cough and fatigue can last for several weeks, making a full return to work and personal activities difficult.
Flu self assessment tool: http://www.health.gov.on.ca/en/public/programs/publichealth/flu/tools/assessment/default.aspx
In general, people who get the flu can spread it to others for 1-3 days before symptoms start and up to 7 days after they begin to have symptoms. Young children can spread the flu for up to 6 days before the symptoms start and up to 21 days after their symptoms begin.
The flu can also lead: