GS HIV-1/HIV-2 PLUS O EIA

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Overview

GS HIV-1/HIV-2

GS HIV-1/HIV-2 PLUS O EIA

True Detection of HIV-1 Group O

The only HIV-1/HIV-2 microplate assay approved for diagnostic and blood screening use to test human serum, plasma, and cadaveric serum samples.

   
  • Detects antibodies to HIV-1 (groups M and O)
  • Detects antibodies to HIV-2
 

For manual and automated use

 

Common reagents can be used with
other Bio-Rad EIA assays

   
Color changes during protocol steps   Offers results in 2.5 hours   Microplate strip identification
GS HIV-1/HIV-2 PLUS O EIA

Ensuring Detection of All HIV Groups and Variants

Reactivity in HIV-1 (Groups M and O) and HIV-2 Positive Samples
Results obtained with GS HIV-1/HIV-2 PLUS O EIA

Group Number Reactive Percent Reactive
Known HIV-1 Positive* (N = 1002) 1002 100%
Known HIV-2 Positive (N = 302) 302 100%
Known HIV-1 Group O Positive (N = 77) 77 100%


* Included 313 AIDS patients, 490 known HIV-1 positive samples from the U.S., and 199 known HIV-1 positive samples from non-U.S.
   countries. [Australia, New South Wales (N = 36), Central African Republic (N = 40), Ghana (N = 5), Kenya (N = 3), Nigeria (N = 46),
   Sierra Leone (N = 40), Thailand (N = 21), Zimbabwe (N = 8)].
† HIV-2 samples were repeatedly reactive on an HIV-2 EIA, positive on an HIV-2 Western blot, and indeterminate or negative on an
HIV-1 Western blot.
‡ Samples were characterized as HIV-1 group O by serotype and/or genotype.


Closing the Serological Window

Reactivity on 50 HIV-1 Seroconversion Panels
Results Obtained with GS HIV-1/HIV-2 PLUS O EIA

Comparison HIV-1/HIV-2 PLUS O
Equivalent
HIV-1/HIV-2 PLUS O
More Sensitive
HIV-1/HIV-2 PLUS O
Less Sensitive
Licensed Kit #1 12/46* (26%) 34/46* (74%) 0 (0%)
Licensed Kit #2 35/50 (70%) 9/50 (18%) 6/50 (12%)
Licensed Western Blot 13/50 (26%) 37/50 (74%) 0 (0%)


* Four of the 50 seroconversion panels did not have test results with the licensed HIV-1/HIV-2 EIA Kit # 1 and are no longer available
   for testing.

GS HIV-1/HIV-2 PLUS O EIA

GS HIV-1/HIV-2 PLUS O EIA

Test Format   Sample/Reagent Addition Monitoring

 

  Color of well
BEFORE addition
  Color of well
AFTER addition
  • Coated microplate*
  • 25 mL of Specimen Diluent

clear to purple

  • 75 µL of control or sample
  • Incubate 60 minutes at 37°C

purple to blue

Wash
  • 100 µL of Working Conjugate Solution
  • Incubate 30 minutes
    at 37°C

clear to green

 
Wash
  • 100 µL of Working TMB Solution
  • Incubate 30 minutes at room temperature

clear to blue***

  • 100 µL of Stopping Solution

blue to yellow***

 
READ within 30 minutes at 450 nm with the 615–630 nm filter as a reference

* Microplate coated with:

  1. HIV-1 gp160 rDNA protein.
  2. HIV-1 p24 rDNA protein.
  3. Synthetic polypeptide mimicking artificial HIV-1 group O epitope.
  4. HIV-2 gp 36 polypeptide.

** Conjugate (peroxidase-conjugated antigens):

  1. Two HIV-1 gp41 polypeptides.
  2. HIV-1 p24 rDNA protein.
  3. Synthetic polypeptide mimicking artificial group O epitope.
  4. HIV-2 gp36 polypeptide.
*** Reactive samples after 30 minute incubation.
HIV Serological Profile

HIV Serological Profile

The GS HIV-1/HIV-2 PLUS 0 EIA is an enzyme immunoassay utilizing recombinant proteins and synthetic peptides for the detection of antibodies to HIV-1 (Groups M and 0) and/or HIV-2 in human serum and plasma. It is indicated as a screening test for specimens from individual human donors, including donors of whole blood, blood components, and source plasma, and from other living donors. It is also intended for use in testing plasma and serum specimens to screen organ donors when specimens are obtained while the donor's heart is still beating, and in testing blood specimens from cadaveric (non-heart-beating) donors. In addition, it is intended as an aid in the diagnosis of infection with HIV-1 and/or HIV-2. The assay is not intended for use on cord blood specimens.

The GS HIV-1/HIV-2 PLUS 0 EIA is intended for manual use and also for use with the ORTHO® Summit System (OSS) in the screening of blood donors.

The GS HIV-1/HIV-2 PLUS 0 EIA is intended for manual use and also for use with the EVOLIS™ Automated Microplate System as an aid in the diagnosis of infection with HIV-1 and/or HIV-2.

GS HIV-1/HIV-2 <em>PLUS O</em> EIA
GS HIV-1/HIV-2 PLUS O EIA

32588
480 tests for detection of antibodies to human immunodeficiency virus types 1 and 2 (HIV-1 and HIV-2) in human serum, plasma, and cadaveric serum

List Price:   Inquire
Quantity:   Add to Quote
 
GS HIV-1/HIV-2 <em>PLUS O</em> EIA
GS HIV-1/HIV-2 PLUS O EIA

32589
960 tests for detection of antibodies to human immunodeficiency virus types 1 and 2 (HIV-1 and HIV-2) in human serum, plasma, and cadaveric serum

List Price:   Inquire
Quantity:   Add to Quote
 
GS HIV-1/HIV-2 <em>PLUS O</em> EIA
GS HIV-1/HIV-2 PLUS O EIA

25256
4800 tests for detection of antibodies to human immunodeficiency virus types 1 and 2 (HIV-1 and HIV-2) in human serum, plasma, and cadaveric serum

List Price:   Inquire
Quantity:   Add to Quote
 
Number Description Options
LIT-P-109 HIV-1/HIV-2 PLUS O EIA Brochure (U.S. Only) Click to download [ Add to Cart (Free) ]