Tuberculosis or TB is caused by a germ called Mycobacterium tuberculosis, which usually affects the lungs but can also impact other body parts. According to WHO, the germ is highly contagious and is the second leading infectious killer after COVID-19.
TB most commonly manifests as a latent tuberculosis infection (LTBI), affecting 13 million people in the U.S . Those with LTBI are infected but not yet contagious. About 10% of the infected will progress to the deadly contagious or active version of the disease. In diabetics, about 30% progress. In the immunosuppressed, the conversion rate approaches 100%. Let us learn about the risk factors, diagnosis, and treatment of LTBI.
The main differences between Latent TB Infection and Active TB are
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Active TB can be fatal and cause permanent lung damage if left untreated, requiring immediate medical attention. People with LTBI may develop active TB in the future (see above).
The diagnosis of latent TB is performed when a person tests TB positive, and the medical evaluation does not indicate active TB. A blood test called the IGRA is used to screen for TB for immigration purposes. The highly inaccurate and user-dependent older tuberculosis skin test (TST) is no longer used for immigration purposes.
Interacting with the people mentioned below may increase the chance of developing latent tuberculosis infection
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To become a permanent resident or to get a work visa in the United States, you must undergo an immigration medical examination, and testing for TB is a required part of the process. You will need further tests and possible treatment if you are diagnosed with an active TB infection or LTBI during the screening. A positive TB test result will not affect your chances of getting a green card, as long as you follow the rules for additional testing and, if required, treatment.
If you need further information about TB and immigration medical examinations, you can contact Steven Wittenberg Gordon. With his decades of experience, Dr. Gordon is committed to helping you with the entire immigration medical examination process. Request an appointment for any questions related to immigration medical exams today.