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False Negative Elisa And Subtypes

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subtypes M N O y vih 3 false negative

Posted by mariana, 2 Replies
HIV subtypes are not detectable by ELISA ... I have read Dr Steve say that the fourth-generation ELISA does not detect p 24 subtypes such as type 1 and MNO fail 40 to 60% detection by giving false negatives HIV2.

The latter is another specialist... Read more »

so ELISA tests NEVER give a false negative?

Posted by Anonymous, 3 Replies
Is this statement correct? Read more »

Help please.. Possible 2 False negative ELISA *DELETED*

Posted by deletemyaccount, 1 Reply
Post deleted by HoPeAndFaiTh Read more »

Chances of false negative elisa???

Posted by Anonymous, 3 Replies
Tested negative almost 5 months (145 days) after exposure and got a negative elisa. What are the chances that this is a false negative? Should i have another test? Going NUTS! Read more »

False negative tests...

Posted by Anonymous, 3 Replies
I had an encounter with a woman who's HIV status I haven't been able to find out because a couple of months after our encounter she skipped town and her family say they don't have her phone number! I feel I was probably hustled, but that's another... Read more »
Ask the Experts

Is two months viral load equal to six months elisa? 99.8% negative is not false negative?

Is two months viral load equal to six months elisa? 99.8% negative which is not a false negative?...
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
I don't think the study has been done to answer that question.MH... Read more »

Can an ELISA give a false negative if I've been infected for years?

I read somewhere that an ELISA test can give a false negative if the illness has progressed to the AIDS stage because the body can no longer produce anti-bodies. Is this true?...
Robert J. Frascino, M.D.

Response from Robert J. Frascino, M.D.

The Robert James Frascino AIDS Foundation
Hello,Rare patients have been noted to "serorevert" (become HIV-antibody negative after being HIV-positive) in very late-stage disease. This would give a "false negative" result. However, please note this is very uncommon and... Read more »

False Negatives (ELISA) and HIV-2

Doctor, Thank you for providing an invaluable and highly appreciated service. I have two questions: 1. The ELISA test can return a 'false negative' if the test is done too soon. The second time is after the body no longer is producing the...
Rick Sowadsky, M.P.H.

Response from Rick Sowadsky, M.P.H.

Nevada State Health Division AIDS Program
Hi. Thank you for your question. When a person is infected with HIV, it cantake up to 6 months to show positive on the test (Average = 25 days, usualtime = 3 months, maximum time at 99% accuracy = 6 months). If a person getstested prior to 6... Read more »

False Negatives (ELISA) and HIV-2

Doctor, Thank you for providing an invaluable and highly appreciated service. I have two questions: 1. The ELISA test can return a 'false negative' if the test is done too soon. The second time is after the body no longer is producing the...
Rick Sowadsky, M.P.H.

Response from Rick Sowadsky, M.P.H.

Nevada State Health Division AIDS Program
Hi. Thank you for your question. When a person is infected with HIV, it cantake up to 6 months to show positive on the test (Average = 25 days, usualtime = 3 months, maximum time at 99% accuracy = 6 months). If a person getstested prior to 6... Read more »
Articles
Henry J. Kaiser Family Foundation

NIAID Launches Phase I Clinical Trial of GenVec Vaccine to Induce Immune Response Against Various HIV Subtypes

The National Institute of Allergy and Infectious Diseases has launched a Phase I clinical trial of GenVec 's AIDS vaccine, which is designed to induce an immune response against three HIV subtypes, the Wall Street Journal reports. The vaccine,... Read more »
Henry J. Kaiser Family Foundation

South Africa Begins First Phase II Trial for HIV Vaccine Targeting Subtype C

The International AIDS Vaccine Initiative and Seattle-based Targeted Genetics on Monday announced plans to launch the first Phase II trial in South Africa to test a new HIV vaccine candidate, Reuters reports (Reuters, 11/14). The trial will test... Read more »
U.S. Centers for Disease Control and Prevention

Questions and Answers: False-Positive Oral Fluid Rapid HIV Tests

What is the significance of the reported increases in false positives when using the oral fluid HIV test in New York City sexually transmitted disease (STD) clinics? It is important to keep in mind that overall oral fluid tests have performed well.... Read more »
U.S. Centers for Disease Control and Prevention

San Francisco Clinics Getting High False-Positive Rate on Oral HIV Test

According to San Francisco Department of Public Health officials, analyses of more than 6,000 rapid-result oral HIV tests conducted in city public health clinics since spring found 47 positive results in patients who were negative in follow-up... Read more »