A diagram which summarize the way how HIV infection progresses (HIV life cycle) is shown as followed.
In this HIV lifecycle diagram, there are steps can be identified:
- Free virus circulates in the bloodstream
- Virus binds to cell at two receptor sites
- Virus penetrates cell, HIV empties its contents into the cell
- Single strands of viral RNA are converted into double-standed DNA by the reverse transcriptase enzyme
- Viral DNA is combined with the cell’s own DNA by the integrase enzyme
- When the infected cell divides, the viral DNA is read and long chains of proteins are made. It activates the HIV DNA, which makes the raw material for new viruses
- Sets of viral protein chains come together
- Immature virus pushes out of the cell taking some cell membrane with it
- Immature virus breaks free of the infected cell
- The protein chains in the new viral particle are cut by protease enzyme into individual proteins that combine to make a working virus (the new HIV virus matures)
primary care for HIV
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