What are T-Cells and their role in HIV infection?
Correct answer: D. All of these options are correct
- A. Type of lymphocytes
- B. Present in blood and work as the defence system
- C. They kill the foreign invader
- D. All of these options are correct
Explanation
A type of white blood cell, T-cells are part of the immune system and develop from stem cells in the bone marrow. They help protect the body from infection and may help fight cancer. They are also called T lymphocyte and thymocyte. Therefore, all the options mentioned above are correct.
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About AIDS and HIV Infection
HIV is a retrovirus that infects CD4 T lymphocytes and gradually weakens immune function, while AIDS is the advanced syndrome caused by severe immune deficiency. Coverage includes viral transmission, replication, disease progression, opportunistic infections, diagnosis, prevention and the difference between HIV infection and AIDS.
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