What is the mechanism by which AIDS virus causes deficiency of immune system of infected person?

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Solution

In infected person. HIV enters into macrophages where virus is replicated and gets incorporated with host cell's DNA with the help of enzyme RNA transcriptase. Infected host cells produce virus particles so that host's macrophages acts as HIV factors. At the same time, HIV enters into helps $T - l y m p h o c y t e s (T_{H})$ and replicates to form progeny virus. They again attack blood and helper $T - l y m p h o c y t e s$ . This disease is T-helper leads to deficient immunity in infected person.

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