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HIV/AIDS
 Understanding
  Quick Facts
  What are HIV and AIDS?
  How HIV Causes AIDS
  Biology of HIV
   Structure of HIV
   HIV Replication Cycle
   HIV Evades the Immune System
   HIV Devastates the Immune System
   HIV Hides from the Immune System
   Clinical Progression of HIV
   Disease Progression Factors
  HIV Risk Factors
  Symptoms
  Testing and Diagnosis
  Treatment
  Prevention
  Publications
 Research
 HIV/AIDS Clinical Trials



HIV Replication Cycle

Illustration of the HIV Replication Cycle
Credit: NIAID

Steps in the HIV Replication Cycle

  1. Fusion of the HIV cell to the host cell surface.
  2. HIV RNA, reverse transcriptase, integrase, and other viral proteins enter the host cell.
  3. Viral DNA is formed by reverse transcription.
  4. Viral DNA is transported across the nucleus and integrates into the host DNA.
  5. New viral RNA is used as genomic RNA and to make viral proteins.
  6. New viral RNA and proteins move to cell surface and a new, immature, HIV virus forms.
  7. The virus matures by protease releasing individual HIV proteins.

See Also: Structure of HIV

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