HIV that causes AIDS, first starts destroying:

HIV that causes AIDS, first starts destroying:

Options

(a) Leucocytes
(b) Helper T- Lymphocytes
(c) Thrombocytes
(d) B- Lymphocytes

Correct Answer:

Helper T- Lymphocytes

Explanation:

Untreated HIV disease is characterized by a gradual deterioration of immune function. Most notably, crucial immune cells called CD4 positive (CD4+) T cells are disabled and killed during the typical course of infection. These cells, sometimes called T-helper cells, play a central role in the immune response.

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  • As learnt in
    Replication of retrovirus -
    Virus attack T-lymphocytes
    - wherein
    During this period, the person suffers from bouts of fever, diarrhoea and weight loss. Due to decrease in the number of helper T lymphocytes, the person starts suffering from infections that could have been otherwise overcome such as those due to bacteria
    especially Mycobacterium, viruses, fungi and even parasites like Toxoplasma. The patient becomes so immuno-deficient that he/she is unable to protect himself/herself against these infections.

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