The Body: The Complete HIV/AIDS Resource
Follow Us Follow Us on Facebook Follow Us on Twitter Download Our App
Professionals >> Visit The Body PROThe Body en Espanol

How Accurate Is Dna Testing In Hiv

Here's a taste of what has to offer on this topic:
Connect With Others

how accurate is hiv dna test

Posted by gpboy, 1 Reply
i have given hiv dna pcr test on 9th day after probable exposure.

i am waiting for the results in next two days. can any one say how much i can trust this test results? Read more »

Experts-Are any HIV test really 100% accurate?

Posted by Anonymous, 4 Replies
How reliable are any of these test? Has there ever been false negatives for PCR after 28 days? Also, what's the number of documented cases of Elisa or Home access negative at 9 weeks to be positive at 13 weeks? Where and who came up with the 13 week... Read more »

How accurate are PCR tests?

Posted by SoStupid, 1 Reply
Hi everyone...

Well, I'm starting to realize that I'm going to be nuts by 3 months of waiting. My question is simple and to the point: How accurate are PCR tests? I've heard a lot of conflicting statements, but it seems that if you get a good... Read more »

How Accurate is CRP Test at 10 days post exposure

Posted by Anonymous, 1 Reply
Hi Everyone:

At 10 days post exposure my CRP test was 0.7% which the Dr. says is pretty much no HIV possible. What have you guys heard? Read more »

Roche claims to be 99.997% accurate???

Posted by Anonymous, 2 Replies
I've seen several posters say that Roche says "PCR DNA to be 99.997% accurate". Really? I don't
think so...can you give me a number to call or a reference to this? If you think that calling
800-584-8183 is Roche, you're incorrect and if they told... Read more »
Ask the Experts

how accurate hiv dna pcr test after 40 days..?

Hi Doctor, I had hiv dna pcr test at 40th day after having unprotected sex with unkonwn Girl i am not sure about her status.. After reading so many article and forums hiv dna pcr test is very accurate after 28 days of exposure in my case i have...
Shannon Southall

Response from Shannon Southall

Rocky Mountain CARES
HiThe testing guidelines for HIV are to be initially tested at 3 weeks post exposure and then again at 90 days. As long as there are no other exposures happened during this time frame than the results are conclusive. PCR RNA test is a great test to... Read more »

DNA PCR tests, when/if 100% accurate?

With DNA PCR testing, when would you say that this test is 100% accurate and conclusive after an exposure to HIV? In your opinion, is DNA PCR testing at 28 days more accurate than HIV antibody/ELISA testing at the six month time frame? Are either...
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
DNA PCR testing today is close to 99.99% accurate. There is always the chance of a false negative. DNA PCR at 28 days, in my opinion (based on only limited published studies and personal observation), is equal to an ELISA at 6 months.MH... Read more »

PCR DNA testing, is it accurate???

I asked the CDC if the PCR DNA test was accurate for the detection of HIV and their response was "NO". They said that there are several reasons why listed below.1. The competency of the lab performing the test.2. How the sample was...
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
The answer from the FDA in your first 1-4 are correct. For the next 3, in a reliable lab, if both tests are negative after 2-4 weeks of exposure, I would say the person is not infected. I have never seen a person with a negative PCR that was... Read more »


If I had an exposure in Feb of 98' and had an HIV ELISA and PCR DNA and RNA in July 98' would they show this virus or is it to early. I am just making sure I have ruled it out. Thanks...
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
Five months after an exposure is more than enough time. DNA and RNA PCR tests would be positive within a couple of weeks after infection.MH... Read more »

How Accurate Are Rapid HIV Tests? Study Finds Blood Tests Slightly More Accurate Than Oral Tests

Rapid HIV tests perform slightly worse when testing oral samples in comparison to blood, according to a new study published in The Lancet Infectious Diseases on Jan. 24. Researchers from Canada, led by Nitika Pant Pai, M.D., of McGill... Read more »

Innovative Rapid HIV Test Appears to Detect Acute HIV; OraQuick Rapid Saliva Tests Found to Be Not Very Accurate for High Risk Testers

My name's Chris Pilcher and I'm a HIV researcher from UCSF [University of California, San Francisco]. I'm principally interested in HIV diagnostics and particularly in detecting and managing acute HIV infection. The poster is appropriately titled,... Read more »
Henry J. Kaiser Family Foundation

Cameroon's HIV Prevalence Drops From 12% to 5.5% Because of More Accurate Testing Methods, New Survey Shows

Cameroon's HIV prevalence has dropped from about 12% in 2003 to 5.5% this year, according to a new health survey released Wednesday by the country's National AIDS Control Committee, the Associated Press reports. Health officials stressed that the... Read more »
Henry J. Kaiser Family Foundation

Seattle Department Finds OraSure HIV Test to Be Less Accurate Than Label Claims

A report by Public Health -- Seattle and King County in Washington state has found that testing with OraSure Technologies ' OraQuick test provides less accurate results than the label claims, Bloomberg reports. The OraQuick test is the only... Read more »