20. Becomes infected with TB when inhales TB bacteria into the lungs. But even though we are infected, the immune system may prevent from developing symptoms of the disease.
21.
22.
23. People infected with M. tuberculosis within the past two years Older adults People with other medical conditions that appear to increase the risk of TB, such as diabetes and silicosis People born in areas of the world where TB is common, such as Asia, Africa or Latin America People with HIV infection or an otherwise compromised immune system Close contacts of people with infectious TB People at higher risk of active TB disease People at higher risk of TB infection
24. Other people who may be exposed to TB on the job, such some health care professionals People who live or work in residential facilities, such as nursing homes or correctional facilities People who inject illicit drugs or abuse alcohol People who inject illicit drugs People with chest X-ray findings that show previous TB disease People with poor access to health care, including homeless people People at higher risk of active TB disease People at higher risk of TB infection