anyone exposed to an influenza ( flu ) virus can become infected. these viruses are contagious and spread easily among people in groups such as in nursing homes hospitals shelters schools and day cares. working visiting or living in any of these areas increases your risk of getting the flu. the risk of developing severe symptoms and complications is higher for: children younger than 4 years of age. adults age 65 and older. about 90% of the deaths caused by flu occur in this age group. 1 pregnant women. people who have chronic obstructive pulmonary disease (copd) other lung diseases or heart failure. people who have a medical condition (such as acquired immunodeficiency syndrome [aids] ) or who are using a medicine that impairs the immune system. webmd medical reference from healthwise this information is not intended to replace the advice of a doctor. healthwise disclaims any liability for the decisions you make based on this information. © 1995-2011 healthwise incorporated. healthwise healthwise for every health decision and the healthwise logo are trademarks of healthwise incorporated.
what increases the risk of getting influenza?