Laboratory Diagnosis of HIV Infection
HIV Rapid Serology Follow-up Algorithm

October 2009
For individuals who had a reactive or presumptive positive rapid antibody test, here is the recommendation for a follow-up laboratory evaluation. And let’s concentrate just on the top one-third of this algorithm. For positive or reactive rapid HIV-1 or rapid HIV-1 and -2 antibody tests, we recommend a combination of HIV-1 and -2 confirmatory evaluation listed there, which is to perform a Western blot, or to actually perform Western blot confirmatory test as well as an antibody screen, which will include an HIV-1 and -2 antibody screening test in the laboratory using enzyme immunoassays or chemiluminescence immunoassays.
Then the rest of the algorithm below is the same as the previous slide. The reason for including an enzyme immunoassay screen after a rapid antibody test result is in case if one does decide to do a follow-up evaluation at a later date, that would start with an HIV-1 and -2 antibody. So this is mainly for later comparisons.
HIV Rapid Serology |
Jump to section:
- Introduction
- HIV Markers During Early Infection
- Assay-Defined HIV Detection Windows and Infection Periods
- Serologic Tests for HIV Infection in US
- Principle of Future Combined HIV Antigen-Antibody ELISAs
- Virology Tests for HIV Infection
- HIV Serologic Screening Algorithm
- HIV Rapid Serology Follow-up Algorithm
- Indeterminate HIV-1 Antibody Western Blot Results
- Rapid HIV Antibody Tests Licensed in US, 2009
- Predictive Value: Single Screening Test
- Rapid HIV Antibody Tests: Clinical Applications
- Follow-Up Testing of Reactive Rapid HIV-1 Antibody Tests Results
- Diagnostic HIV Testing in Infants
- Diagnostic HIV Testing in Infants
- Awareness of Serostatus Among People with HIV and Estimates of Transmission in US
- Reasons for Testing: Late vs. Early Testers
- 2006 US CDC Recommendations: Adults and Adolescents
- 2006 US CDC Recommendations: Adults and Adolescents
- 2006 US CDC Recommendations: Pregnant Women
- 2006 US CDC Recommendations: Pregnant Women
- Summary
- Questions?
- Disclosure