Which cell acts as factory of HIV ?A Macrophage B TH cells C TK cells D N.K. cells

The question asks about which cell acts as a factory for HIV. The correct answer is:

Detailed Explanation

1. Understanding HIV: Human Immunodeficiency Virus (HIV) primarily infects components of the immune system, specifically targeting cells where it can replicate and propagate.

2. Cell Types:

   • A. Macrophage: These are phagocytic cells of the immune system that can be infected by HIV, but they are not the primary factory cells for the virus.
   • B. TH cells (T Helper cells): These cells, specifically CD4+ T cells, are the main targets for HIV. The virus enters these cells and utilizes their machinery to replicate.
   • C. TK cells: T Killer (cytotoxic T) cells are not specifically involved as factories for HIV replication.
   • D. N.K. cells: Natural Killer cells are part of the innate immune response and do not serve as factories for HIV.

3. Conclusion: Of these options, TH cells (specifically CD4+ T cells) serve as the primary factories for HIV because the virus relies on these cells for replication and propagation.

Final Answer:

B. TH cells act as the factory for HIV.