(HealthDay News) -- Tuberculosis (TB) is a contagious, infectious disease that's passed from person to person through the air. TB usually affects the lungs, but can affect other parts of the body.
Certain people are more susceptible to TB than others, says the American Lung Association (ALA). Diabetics, people who are HIV-positive, alcoholics, intravenous drug users, and people suffering from malnourishment are all more likely to develop TB if they come into contact with the TB germ.
People who work in certain industries may also be at greater risk for TB, according to the ALA. Workers in nursing homes, prisons, hospitals and other health-care arenas should be tested if they think they may have been exposed to TB, or if they show symptoms.
Symptoms of TB infection include chronic cough and fatigue, decreased appetite, weight loss, night sweats and coughing up blood. If you have these symptoms, see your doctor at once.
