Answer :

• HIV stands for human immunodeficiency virus. HIV causes AIDS (Acquired Immune-Deficiency syndrome).

• When the HIV gets inside a person’s body, it attacks his/her immune system and enters into the macrophages and replicates its RNA genome and forms viral DNA.

• Then this viral DNA gets incorporated in the host cell’s DNA and directs the infected cells to produce viral particles.

• This goes on over and over and the viral particle production continues making the macrophages act like an HIV-factory.

• Here on the virus enters the helper T cells or the T-lymphocytes.

• Due to the repeated attack, the number of helper T-cells decreases drastically.

• As a result, the person’s immunity gets compromised and they start suffering from even minor infections that the body could otherwise have recovered from.

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