In this part of the guide, we go over some of the "basics" of HIV -- what your immune system is, what CD4 cells are, what HIV infection does and how to fight it.
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The Immune System describes how your body fights infection with the help of vital cells called CD4 cells.
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What Does HIV Do to You? explains how untreated HIV gradually destroys CD4 cells and weakens the immune system. HIV treatment can stop HIV from attacking the immune system, allowing the immune system to repair itself and keep you healthy.
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Monitoring Your Health talks about how you can track the strength of your immune system, the activity of the virus in your body, and your overall health.
