Who is



Anybody can get sick with the flu. However, some people are at a higher risk of developing complications than others, including:1


High-risk groups with pre-existing conditions:

  • Neurological and neurodevelopmental conditions
  • Chronic heart or lung disease
  • Asthma
  • Long-term aspirin therapy (younger than 19 years of age)
  • Extreme obesity (body mass index [BMI] of 40 or more)
  • Blood/­endocrine/­kidney/­liver/­metabolic disorders
  • Weakened immune system due to disease  or medication

Not high risk? Think again. Even if you are not in any of the high-risk groups, you may be living with a family member who is.

To protect your loved ones, it is important to seek early treatment to prevent spreading the flu to them.

Discover more about flu treatment with antivirals


  1. Centers for Disease Control and Prevention. People at High Risk of Developing Serious Flu-Related Complications. Available from: https://www.cdc.gov/flu/about/disease/high_risk.htm. Last accessed: October 2018.