Recent Blog Articles

An update on the "old man's friend"

July 01, 2007

The flu and pneumococcal vaccines provide some protection against it, but pneumonia is still a major cause of death.

Pneumonia is inflammation deep inside the lungs caused by some kind of infection. As a result of the infection and the immune response to it, the tiny air sacs (alveoli) — where oxygen is absorbed into the bloodstream — fill with fluid, impairing the ability to breathe. Each year millions of Americans come down with a case, frequently as a complication of another illness, and about 60,000 die from pneumonia.

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
Learn more about the many benefits and features of joining Harvard Health Online »

I'd like to receive access to Harvard Health Online for only $4.99 a month.

Sign Me Up

Already 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.