Primary HIV infection is ultimately confirmed serologically by the appearance of antibodies
to HIV. IgM antibody by immunofluorescence assay (IFA) was detected at a mean of 5±3 days and IgG
antibodies at a mean of 11±3 days after the onset of symptoms . However, the standard third generation enzyme linked immunosorbent assays (ELISAs) used in clinical practice and in blood banks in the United States do not detect antibodies to HIV until three to seven weeks after infection.
Rapid test assays vary in the specimen types that can be utilized (eg, blood, plasma, serum, saliva):
OraQuick Rapid HIV-1/2 Antibody Test (OraSure Technologies, www.orasure.com); specimens include blood, plasma, or saliva.
OraSure HIV-1 Western Blot test (OraSure Technologies, www.orasure.com); specimens include saliva.
Uni-Gold Recombigen HIV Test
(Trinity Biotech, file://www.trinitybiotech.com/PointOfCare/Pages/HIV-USA.aspx); specimens include blood, plasma, and serum.
Reveal HIV-1 G3 Antibody Test (MedMira Laboratories, www.medmira.com); specimens include plasma and serum.
Multispot HIV-1/HIV-2 (Bio-Rad Laboratories; www.bio-rad.com); serum specimens only.
Clearview (Inverness Medical; www.invernessmedicalpd.com); blood specimens.
VITROS Anti HIV 1 & 2 (Ortho Clinical Diagnostics; www.orthoclinical.com); serum specimens
both the TESTS YOU WROTE CAN DETECT HIV....ELISA...ENZYME LINKED IMMUNOABSORBENT ASSAY............POLYMERASE CHAIN REACTION IS PCR......ITS THE DELAY IN TIME THEY GAVE YOU RESULT.....ANAL SEX FOR THE FIRST TIME MEANS SIMPLE FRICTION INJURY
TO THE MUCOSA OR U HAD HEAMORRHOIDS......HIV IS NOT THAT COMMON AFTER FIRST ANAL SEX...BESIDES ACUTE HIV INFECTION HAS DEIFFERENT SYMPTOMS.......STILL CHECK YOUR HIV STATUS