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What Is An Antigen Test For HIV

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p24 antigen and HIV testing positive

Hello, I tested positive in September this year. And one of the bands listed was p24. My question is this. Does this mean that I am still in the seroconversion phase. My understanding was that this would disappear after seroconversion. Also, I...
Mark Holodniy, M.D., F.A.C.P., C.I.C.

Response from Mark Holodniy, M.D., F.A.C.P., C.I.C.

Stanford University, School of Medicine
No you are not in the seroconversion phase. A p24 band on a western blot, indicates that you have made antibody to p24 antigen. It does not mean that p24 antigen is present in your blood. P24 antibody will be present forever. You are in early... Read more »

antigen plus antibody hiv test

Dear Dr. Bob,I am married to a wonderful young lady and I have two beautiful kids.The reason why I... Read more »

HIV NAT, Antigen Testing

Doctor,I have heard that NAT testing and Antigen testing is the most accurate testing yet to test... Read more »
Articles
U.S. Food and Drug Administration

FDA Approves First Rapid Diagnostic Test to Detect Both HIV-1 Antigen and HIV-1/2 Antibodies

The U.S. Food and Drug Administration today approved the first rapid Human Immunodeficiency Virus (HIV) test for the simultaneous detection of HIV-1 p24 antigen as well as antibodies to both HIV-1 and HIV-2 in human serum, plasma, and venous or... Read more »
ACRIA and GMHC

Teens and Testing

Over a third of new HIV infections in 2006 occurred among those aged 13 to 29. This is the highest percentage of any age group. One reason for this may be found in the Youth Risk Behavior Survey of U.S. high school students, done from 1991... Read more »
Henry J. Kaiser Family Foundation

CD4 Quick Test Helps Increase Number of Patients Who Return for HIV Test Results

A new quick test to determine the CD4 levels of individuals who test positive for HIV "resulted in a substantial increase" in the percentage of people returning to a clinic get those results, according to a study conducted in Mozambique and... Read more »
U.S. Centers for Disease Control and Prevention

Roche Gets Food and Drug Administration OK for Improved HIV Test

Swiss manufacturer Roche Holding AG said Friday the US Food and Drug Administration has cleared an improved test to measure viral levels in the blood of HIV/AIDS patients. The test is designed to amplify and detect genetic material, allowing for the... Read more »
Connect With Others

Accuracy of Anti-hiv 1&2 (recombinant antigen) blood test? Please help!

Posted by Burgundy11, 1 Reply
I did a Anti-hiv 1&2 (recombinant antigen) blood test 5months after my exposure. The result was negative. How accurate is the result?! Read more »

Where do you find antigen testing

Posted by Anonymous, 2 Replies
I have only heard of this testing here on the internet. Many people say they were tested using the fourth generation test. All of the clinics around here just use Oraquick or they will send your blood in if you want to wait a few weeks to get the... Read more »

p24 antigen test

Posted by Anonymous, 3 Replies
is it true the p24 antigen test is only accurate 2-4 weeks after infection ? Read more »

hiv antigen

Posted by Anonymous, 2 Replies
what is the chane of me taking 3 hiv antibody tests many yrs after exposure all neg the today i went for a hiv 2 and antigen test that these test would come back positive i have been hjaving some syptoms hiv related for 4 yrs but i tested neg on... Read more »