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Undetectable VL Before Antibodies

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Ask the Experts

Can both virus and antibody be undetectable?

Dear Doctor Holodniy,I really hope that you would answer my question this time-I desperately want to know!On 34 day after a possible exposure, I had a PCR RNA test and a antibody test-the former came out undetectable(<50/ml),and the latter non...
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
As long as samples are handled appropriately (ie frozen) they can sit for months and still be tested effectively.... Read more »

Does an undetectable viral load make you antibody negative?

If a HIV+ person using HAART and successfully get undetectable viral load for a long period (years)... Read more »

Undetectable VL and HIV Antibody Test

Hi, Can I ask a very naiive question. If an HIV positive person has an undetectable viral load,... Read more »

News & Views: Undetectable Transmission Risk = Zero?; Chronic Pain; The Poverty-HIV Link; and More

HIV News &amp; Views, March 6, 2014 - March 6, 2014 Top Stories at Read Past Newsletters Change/Update Subscription Hello Readers, The Conference on Retroviruses and Opportunistic... Read more »
Treatment Action Group

Study of HIV Superinfection and Neutralizing Antibody Responses Causes Confusion

On March 29 th , PLoS Pathogens published a paper reporting that women superinfected with two HIV variants are more likely to generate antibody responses capable of neutralizing a broad array of viral strains (known as broadly neutralizing... Read more »
Black AIDS Institute

Is Participating in Vaccine Clinical Trials Worth the Risk?

Last week, U.S. government scientists announced their discovery of three antibodies in a man's cells, including one that neutralizes 91 percent of HIV strains. At the age of 60, this man, known in scientific circles as Donor 45, became one of the... Read more »
Canadian AIDS Treatment Information Exchange

Daclatasvir and GS-7977

Daclatasvir was the first oral HCV NS5A inhibitor to be developed. GS-7977 is a nuke with activity against NS5B. Both drugs have powerful anti-HCV activity when used separately. In study AI444-040, researchers in the U.S. studied different... Read more »
Connect With Others


Posted by Anonymous, 1 Reply
Had negative antibody testing after 6 month period(no further exposures) strange symptoms with tongue(white crap on tongue and taste buds seem to be larger than normal at back of tongue)Could a person still have hiv in their system but for some... Read more »

HIV Tests/Undetectable

Posted by Anonymous, 2 Replies
I have a question.... Given a person who tests hiv-neg versus another person who has tested hiv-pos in the past and is on drug therapy to the point that his/her hiv levels are described as "undetectable" who is to say that the first person who tests... Read more »

What do they mean by undetectable?

Posted by Anonymous, 3 Replies
when some people with HIV who are taking medicines say they are undetectable, do they mean that when they are tested, the results come back negative?
if so, does that happen with all the tests available out there or just with some of them?

Read more »


Posted by Anonymous, 4 Replies
dear friends, I had a risk and a lot of ARS-symptoms(rash,lymph-pain,muscle pain,body-pain) But after this time I have done 10 about 20 months! All neg. And I have done 2 pcr-dna-tests( after5 and 7 months) All neg. I am sure to be infected-... Read more »