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HIV (Human Immunodeficiency Virus) primarily attacks which cells of the immune system?
AT-helper cells (CD4+ lymphocytes)
BRed blood cells (erythrocytes)
CPlatelets (thrombocytes)
DNeutrophils (granulocytes)
Answer & Solution
Correct answer: A. T-helper cells (CD4+ lymphocytes)
HIV is a retrovirus that primarily infects CD4+ T-helper lymphocytes, depleting them and weakening the immune system. As CD4 count falls below 200, AIDS develops.
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