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03-04-2021
Biology

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A diagnostic test for tuberculosis (TB) involves injecting antigen (from the bacterium that causes TB) under the skin and then waiting a few days for a reaction to appear. This test is NOT useful for diagnosing TB in AIDS patients. Explain why

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03-04-2021

Answer:

This test is called TB Skin Test.

Some people who are infected with both HIV and TB bacteria will not react to the TB skin test. This is because the immune system is not working properly. Anyone who is HIV infected and has a negative skin test should also have other medical tests, if they have symptoms of TB disease.

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