Note: Javascript is disabled or is not supported by your browser. For this reason, some items on this page will be unavailable. For more information about this message, please visit this page: About CDC.gov . People at High Risk of Developing Flu-Related Complications This website is archived for historical purposes and is no longer being maintained or updated. For updated information on the 2011-2012 flu season, see the CDC Seasonal Flu website . November 10, 2009, 6:00 PM ET Most people who get the flu (either seasonal or 2009 H1N1) will have mild illness, will not need medical care or antiviral drugs, and will recover in less than two weeks.  Some people, however, are more likely to get flu complications that result in being hospitalized and occasionally result in death. Pneumonia , bronchitis, sinus infections and ear infections are examples of flu-related complications. The flu can also make chronic health problems worse. For example, people with asthma may experience asthma attacks while they have the flu, and people with chronic congestive heart failure may have worsening of this condition that is triggered by the flu.  The list below includes the groups of people more likely to get flu-related complications if they get sick from influenza. People at High Risk for Developing Flu-Related Complications Children younger than 5, but especially children younger than 2 years old