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Reasons For False Positive ELISA

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Ask the Experts

Elisa Results +ve and reactive (FALSE POSITIVE ELISA AND PREGNANCY)

Dear Rob,I am 37 year old happily married man and have been married for more than eight years. We have two sons, eight and six.My wife is 20 weeks pregnant. She went for all sorts of tests as per norm, but to our schock the Elisa results came back:...
Robert J. Frascino, M.D.

Response from Robert J. Frascino, M.D.

The Robert James Frascino AIDS Foundation
Hello,Positive/reactive ELISA results must always, always, always be confirmed with a more specific test (Western Blot or immunofluorescent assay) before the person is labeled HIV positive. That your wife's gynecologist may not realize this is... Read more »

Reasons for False Positive results

Dear Doctor,I just read that you said over-testing for HIV can lead to a false positive. Is that... Read more »

False Positive Elisa?

Hi - My husband recently had to have bloodwork done and his Elisa came back positive (repeatedly... Read more »
Articles
Henry J. Kaiser Family Foundation

MMWR Report Examines False-Positive Oral Fluid Rapid HIV Tests

"False-Positive Oral Fluid Rapid HIV Tests --- New York City, 2005--2008 ," Morbidity and Mortality Weekly Report : MMWR examines recent increase in the number of false-positive HIV test results in oral fluid testing with OraSure Technologies '... 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

Canada: Study Examines Common Reasons for Not Participating in AIDS Vaccine Trials

As scientists debate the future course of AIDS vaccine research, a new study sheds light on why so many people are reluctant to volunteer as subjects for vaccine trials. Peter Newman, a professor of social work at the University of Toronto, and... Read more »
U.S. Centers for Disease Control and Prevention

Supervised Blood-Based Self-Sample Collection and Rapid Test Performance: A Valuable Alternative to the Use of Saliva by HIV Testing Programs With No Medical or Nursing Staff

Some saliva-based HIV testing initiatives, the authors wrote, "have resulted in an unacceptable percentage of false positives," while in many countries doctors or nurses are required for blood-based HIV testing programs. In the current study, the... Read more »
Connect With Others

False Positives with the Elisa

Posted by Anonymous, 1 Reply
Just wanted to clarify, if I could: Are you guys saying that the Elisa test will sometimes be positive, but they will then confirm it with a Western blot . . . . and if the Western blot is negative, then they just tell you "you're negative"?

I don't... Read more »

Confused false positive or false negative?

Posted by Xian, 1 Reply
Hi All,

Please help with my story and results.

I had unprotected vaginal sex April 9th,2014. I was male.

Tested on May 2,2014(24 days - 3.4 weeks) - blood was drawn and sent to local lab.
Hiv1/2 antibody( should be 3rd gen elisa)w reflex.
The antibody... Read more »

Reasons for a false-positive?

Posted by Anonymous, 1 Reply
I made an appointment to have a rapid test done tomorrow, but am not clear if it's the blood or saliva test. My question is: what are some of the factors that could possibly create a false-positive test, particularly for the oral test? I've had... Read more »

elisa false positive

Posted by Anonymous, 2 Replies
kindly advise ,whether negative western blot after 2 positve elisa at 2 different labs.

what are chances of being positive , as both the labs comes out with negative western blot test

Read more »