Which infectious disease interferes with the human immune system, leaving the body open to opportunistic infections?
HIV
Tuberculosis
Candidiasis
MRSA
The Correct Answer is A
HIV stands for human immunodeficiency virus, a virus that infects and destroys CD4+ T cells, which are a type of white blood cell that coordinates the immune response against foreign invaders. HIV can cause acquired immunodeficiency syndrome (AIDS), which is a condition where the immune system becomes severely weakened and unable to fight off common infections and cancers. HIV can be transmitted through sexual contact, blood transfusion, needle sharing, or mother-to-child transmission.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["A","B"]
Explanation
Memory impairment. A TIA is a temporary interruption of blood flow to a part of the brain, causing neurological deficits that usually resolve within 24 hours. The symptoms of a TIA may include difficulty speaking, understanding, reading, or writing; confusion; memory loss; weakness or numbness on one side of the body; vision problems; or dizziness.
Correct Answer is B
Explanation
Naïve T cells are a type of white blood cell that has not encountered a specific antigen before and are ready to respond to new infections. As people age, the number of naïve T cells decreases due to the shrinking of the thymus gland, which produces and matures T cells. This reduces the ability of the immune system to recognize and fight new pathogens and lowers the effectiveness of vaccines.
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