Does 3rd Generation Elisa Miss Any Subtypes

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San Francisco AIDS Foundation

HIV Testing

... Why Should You Get Tested for HIV? What Are HIV Antibody Tests? ELISA Western Blot (WB) Assay Indirect Immunofluorescence Assay (IFA) Window Period Interpretation of Test Results Accuracy of Antibody Tests Anonymous HIV Testing Confidential
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Third Generation Elisa

How well do third generation Elissa pick up antibodies at 6 weeks after exposure. I heard most people will seroconvert by 25-30 days post exposure. Ugh I really hope so I've never been special in life and it would suck to be special in this way.
Joseph McGowan, M.D., F.A.C.P.

Response from Joseph McGowan, M.D., F.A.C.P.

North Shore University Hospital
...The modern HIV antibody tests (Elisa) are extremely sensitive (over 99.7%) at detecting HIV antibodies if they are present. Most people if exposed will have antibodies Read more »

Accuracy of 1st Generation Elisa

Would a Negative result via 1st Gen Elisa at 23 weeks be considered as accurate as a 3rd Generation Elisa.Thanks for all your help
Ryan M. Kull, C.S.W

Response from Ryan M. Kull, C.S.W

Columbia University's Health & Related Services
...A 1st generationELISA at 23 weeks after exposure is likely to be as accurate as a 3rdgenerationELISA at three months. Early generation assays Read more »

first vs. third

Any diffference between taking a 1st and 3rd generation Elisa at greater then 6 months?
Ryan M. Kull, C.S.W

Response from Ryan M. Kull, C.S.W

Columbia University's Health & Related Services
...A 1st generationELISA is likely to be as accurate six months after exposure when compared to 3rdgenerationELISA. However, there are some important Read more »

ELISA Test Generation. Please reply...its my 3rd post. HELP!

Dr Bob,I have posted a few times previously and hope you can spare some time to reply to my question.I am from Malaysia and had a risky exposure. I have been testing many times (About 5-6 times) for the last 5 months. My latest test was at the 22...
Robert J. Frascino, M.D.

Response from Robert J. Frascino, M.D.

The Robert James Frascino AIDS Foundation
Hi,1.Yes.2.Yes, but I very strongly doubt what you are palpating is related to HIV-associated lymphadenopathy.3.Yes. No.4.No. Antibiotics, such as penicillin used to treat syphilis, will not delay HIV-antibody development.My advice:1.Stop poking... Read more »
Test Positive Aware Network


...virus. In fact, an estimated 7% of newly infected individuals in the U.S. are infected with an NNRTI-resistant virus. The second-generation NNRTI Intelence was developed to have a higher genetic barrier to drug resistance. It has shown... Read more »
AIDS InfoNet

HIV Testing

...the time. Before you get the results, the test has usually been done two or more times. The first test is called an "EIA" or "ELISA" test. Before a positive ELISA test result is reported, it is confirmed by another test called a "Western Blot".... Read more »
The Well Project

Myths About HIV

...measures HIV antibodies. If you are infected, your immune system will make antibodies against HIV. The HIV antibody test (called ELISA or EIA) is one of the most reliable medical tests. Before you get the results, the test has usually been done... Read more »
AIDS InfoNet


What Is Interleukin-2? Who Should Take IL-2? How Is IL-2 Taken? What Are the Side Effects? How Does IL-2 React With Other Drugs? The Bottom Line What Is Interleukin-2? Interleukin-2 (IL-2) is a protein made by the body.... Read more »
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To niclas RE: N subtype

Posted by Anonymous, 2 Replies
...I read your post and I am curious as to where you got your info that states that the N subtype is covered by the 3rdgenerationELISA in Sweden. I personally have trawled the net for a year to find this. Could you give me credible link? Even... Read more »

Difference between 1st generation and 3rd

Posted by Anonymous, 1 Reply
...I found this on THIS website: About Home Access and first generation testing have confidence in it- "We do use the first generationELISA, which uses viral lyzates as antigen. The difference with Read more »


Posted by Anonymous, 2 Replies
...luckily have not had transfusions, but one high risk 14 yrs and am now absolutely in panic despite three negative elisa3rdgeneration tests. HHHHHelp! Read more »

Window period-subtypes

Posted by Anonymous, 1 Reply
...Would the window period be longer for someone with a non-b subtype. Ive read that current Elisas have trouble picking up some early window period infections with non-b subtype. Does the 3-6 month Read more »
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