The figure only worsened when retesting blood from the acute stage infections.

The lab-based ARCHITECT combination antigen/antibody test performed best.

For example, a significant number of people fail to return for their results after testing.

HIV testing tube held by a gloved hand

Westend61 / Getty Images

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First Rapid Home-Use HIV Kit Approved for Self-Testing.FDA Consumer Health Information.Silver Spring, Maryland; 2012.