HIV primarily infects
Ared blood cells
Bhelper T lymphocytes (CD4⁺)
Cneurons
Dmuscle cells
Answer & Solution
Correct answer: B. helper T lymphocytes (CD4⁺)
HIV binds CD4 receptors on helper T cells (and macrophages). As CD4⁺ counts drop, the adaptive immune system fails. Without treatment, AIDS develops — opportunistic infections take over.
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