Which of the following patients is at greatest risk for complications caused by the influenza virus?

Which of the following patients is at greatest risk for complications caused by the influenza virus?

• A. 68-year-old woman with type 2 diabetes
• B. 12-year-old child with a fractured arm
• C. 39-year-old man with mild hypertension
• D. 50-year-old woman with moderate obesity

Answer: (A)

Influenza complications are more likely in people who are older or have chronic health problems. As people age, their immune response becomes less robust, making it harder to clear the virus and increasing the chances of serious outcomes like pneumonia and organ strain. Diabetes further raises risk because it impairs immune cell function and can worsen inflammatory responses and healing, making infections harder to control and recovery slower. When these factors combine—in this case, advanced age plus a chronic condition like diabetes—the likelihood of severe influenza complications rises more than with age or a single chronic condition alone. The elderly patient with type 2 diabetes thus has the highest risk among the choices. The other scenarios involve risk factors, but not as strongly or in combination as age plus diabetes.

Influenza complications are more likely in people who are older or have chronic health problems. As people age, their immune response becomes less robust, making it harder to clear the virus and increasing the chances of serious outcomes like pneumonia and organ strain. Diabetes further raises risk because it impairs immune cell function and can worsen inflammatory responses and healing, making infections harder to control and recovery slower. When these factors combine—in this case, advanced age plus a chronic condition like diabetes—the likelihood of severe influenza complications rises more than with age or a single chronic condition alone. The elderly patient with type 2 diabetes thus has the highest risk among the choices. The other scenarios involve risk factors, but not as strongly or in combination as age plus diabetes.