Aids is caused by infection with which virus?

Prepare for the EMT Medical Terminology Test. Utilize flashcards and multiple-choice questions, each with hints and detailed explanations, to get ready for your certification exam!

Multiple Choice

Aids is caused by infection with which virus?

Explanation:
HIV, the human immunodeficiency virus, directly causes AIDS by infecting and progressively destroying CD4+ T lymphocytes, the cells that coordinate the immune response. As these cells decline, the immune system becomes unable to defend the body against infections and certain cancers, which defines the Acquired Immunodeficiency Syndrome. The other viruses listed cause different diseases—influenza virus causes the flu, varicella-zoster virus causes chickenpox and shingles, and hepatitis C virus causes hepatitis C—so they do not lead to AIDS.

HIV, the human immunodeficiency virus, directly causes AIDS by infecting and progressively destroying CD4+ T lymphocytes, the cells that coordinate the immune response. As these cells decline, the immune system becomes unable to defend the body against infections and certain cancers, which defines the Acquired Immunodeficiency Syndrome. The other viruses listed cause different diseases—influenza virus causes the flu, varicella-zoster virus causes chickenpox and shingles, and hepatitis C virus causes hepatitis C—so they do not lead to AIDS.

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