Tuberculosis (TB) and Latent Tuberculosis Infection (LTBI) Services

TB is a disease, caused by bacteria, that can spread from one person to another. Most often TB affects the lungs, but you can find it in any part of the body.

Bacteria are spread through the air in tiny droplets when a person who is sick with TB:

• Coughs
• Sneezes
• Speak

If you breathe in these droplets, you may become infected with the TB bacteria without knowing it because you will not feel sick and will not have symptoms. This is called latent TB infection (LTBI).  Millions of people in the United States have TB infection, and without treatment, they are at risk for developing TB disease. That is why getting tested and taking medicine for prevention is important.

If you have one or more of the following risk factors, you have a greater chance of getting TB infection:

• Lived or spent time in a country where TB is common
• Lived or spent time with someone with active TB disease
• Lived or worked in a congregate setting (such as a shelter, jail, long-term care or assisted living facility)
• Worked in a healthcare setting
• Homeless, especially within the last two years
• Drug user
• Infant, child, or adolescent who has spent time with an adult at increased risk for TB infection or TB disease

BCG vaccine does not prevent TB. Unlike many vaccines that are very good at preventing disease, the Bacillus Calmette-Guerin (BCG) vaccine has limited benefits.  It prevents the most serious TB symptoms in infants and young children.  It does NOT prevent you from getting TB infection if you are exposed, or from developing active TB disease.

Symptoms of active TB disease may include:

• Cough lasting three or more weeks
• Coughing up blood
• Losing weight
• Night sweats
• Fatigue
• Fever

Remember, people with latent TB infection do not feel sick and do not have any symptoms.