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Reply To: What do CD4 and viral load actually mean?

Two different questions.

Viral load is how much virus is in your blood. It is the one treatment drives down, and undetectable means the test can no longer find it. That is the number tied to U equals U.

CD4 is a count of a type of immune cell, so it tells you how your immune system is doing. It recovers over time once treatment is working.

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