By the way, doctor: Could flu shots prevent lung cancer?
Q. Do you think flu shots might also prevent lung cancer?
A. First, some basics. Flu results when the influenza virus infects the respiratory system — the throat, the bronchi (breathing tubes) and, often, the lungs. When the virus gets into the lungs, it's called pneumonia. Pneumonia can be caused by the influenza virus alone, or by bacteria that overcome defenses weakened by the virus. Pneumonia puts a strain on the entire body, because the lungs can't properly replenish the blood with oxygen or remove its waste products when they're battling a viral and bacterial infection. The heart muscle is especially dependent on a full supply of oxygen, so flu shots, by preventing flu and pneumonia, may indirectly help prevent heart attacks and heart failure.
To continue reading this article, you must log in.
Subscribe to Harvard Health Online for immediate access to health news and information from Harvard Medical School.
- Research health conditions
- Check your symptoms
- Prepare for a doctor's visit or test
- Find the best treatments and procedures for you
- Explore options for better nutrition and exercise
I'd like to receive access to Harvard Health Online for only $4.99 a month.
Sign Me UpAlready a member? Login ».
Disclaimer:
As a service to our readers, Harvard Health Publishing provides access to our library of archived content. Please note the date of last review or update on all articles.
No content on this site, regardless of date, should ever be used as a substitute for direct medical advice from your doctor or other qualified clinician.