TUBERCULOSIS (TB)

A bacterial infection caused by Mycobacterium tuberculosis. TB bacteria are spread by airborne droplets expelled from the lungs when a person with active TB coughs, sneezes or speaks. Repeated exposure to these droplets can lead to infection in the air sacs of the lungs. The immune defenses of healthy people usually prevent TB infection from spreading beyond a very small area of the lungs. If the body's immune system is impaired because of infection with HIV, aging, malnutrition or other factors, the TB bacterium may begin to spread more widely in the lungs or to other tissues.
(97)
© 2006-2017 medpill.info Last Updated On: 11/17/2017 (0.01)
Top site ratings
×
Wait 20 seconds...!!!