A person is undetectable if they are HIV-positive and take their medications regularly so the virus is suppressed in their body. In fact, it’s so suppressed that tests would not even detect the virus in a sample of their blood.
When a person is undetectable, their personal health is significantly improved and it is virtually impossible for them to pass HIV to anyone else. They are still HIV-positive and will need to keep taking their medications to stay undetectable.
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