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New CDC Recommendations for HIV Testing in Laboratories: A step-by-step account of the approach


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New CDC Recommendations for HIV Testing in Laboratories: Graphic

CDC’s new recommendations for HIV testing in laboratories capitalize on the latest available technologies to help diagnose HIV infections earlier – as much as 3-4 weeks sooner than the previous testing approach. Early diagnosis is critical since many new infections are transmitted by people in the earliest (“acute”) stage of infection.
This graphic is designed to illustrate key concepts of the new testing approach in laboratories.
Step one utilizes a “fourth generation” HIV test which detects HIV in the blood earlier than previously recommended antibody tests.
Step two is the HIV-1/HIV-2 antibody differentiation immunoassay. This produces results faster than the previously recommended Western Blot.
Step three is the nucleic Acid Test (NAT) which ensures accurate detection of early infection or indicates a false positive from the fourth generation test. 
New CDC Recommendations for HIV Testing in Laboratories: A step-by-step account of the approach
View High Resolution Version

CDC’s new recommendations for HIV testing in laboratories capitalize on the latest available technologies to help diagnose HIV infections earlier – as much as 3-4 weeks sooner than the previous testing approach. Early diagnosis is critical since many new infections are transmitted by people in the earliest (“acute”) stage of infection.

This graphic is designed to illustrate key concepts of the new testing approach in laboratories.

Infographic – Printable PDF



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