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Can Reactive Elisa Be Confirmed By Another Elisa

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Negative elisa indeterminate western blot weird illnesses

Thank you for all your help. I had a western blot done in the past with p24 weakly reactive, no elisa, blood draw mistake, then multiple elisa non reactive, one western blot p24 reaction uncertain if band still present 2 months after the initial as...
Robert J. Frascino, M.D.

Response from Robert J. Frascino, M.D.

The Robert James Frascino AIDS Foundation
...Hi,You are definitively and conclusively HIV negative.The "weakly reactive" p24 band on a Western Blot (WB), which was mistakenly run without having a preliminary reactive ELISA, was a false positive. Read more »

First ELISA rective, CMIA and ELISA non-reactive

Dear Doctor,I have a quick question for you. My husband was recently summoned by a blood bank who... Read more »

P24 Antigen

Hi DocWhat would you say about people with P24 band detected but a negative ELISA? Is the person... Read more »
San Francisco AIDS Foundation

HIV Testing

...person will need to be retested, usually about one month later. False positive results are extremely rare with the WB, so it confirms (proves) that HIV antibodies are present. Indirect Immunofluorescence Assay (IFA) The IFA can be used... Read more »
New York State Department of Health AIDS Institute

Diagnostic, Monitoring and Resistance Laboratory Tests for HIV performed on oral fluid and urine samples when the specific test has been validated for these specimen types. The terms "reactive," "nonreactive," and "indeterminate" are used to describe the results of the screening and confirmatory assays.... Read more »
New York State Department of Health AIDS Institute

Clinical Guidelines Update: Hepatitis C Virus in HIV-Infected Patients

...multiple sexual partners Quantitative HCV RNA viral load testing is now recommended for HIV-infected patients: To confirm a reactive HCV ELISA antibody screen To exclude HCV infection in those who are seronegative for HCV but have risk... Read more »
AIDS InfoNet

HIV Testing

...November 2010 the FDA approved the INSTI test, which gives results within 60 seconds. A positive result on any HIV test should be confirmed with a second test. Home test kits: You can't test yourself for HIV at home. The "Home Access" test... Read more »
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4th Generation HIV Test

Posted by Trophy
...individuals, or (b) confirmatory (supplemental) assays, which are designed to identify individuals who are not infected but who have reactive screening test results. Accordingly, screening tests possess a high degree of sensitivity, whereas... Read more »


Posted by Anonymous, 1 Reply
...I have a question for you in the U.S, Do you always use both Elisa and Western Blot(Even if Elisa is Negative) or do you only use Western Blot when the ELISA is positive? Read more »

Is there other test to supplement the ELISA?

Posted by Anonymous, 1 Reply
...elisa test, what other tests can i take to supplement this elisa test?can i do a westernblot test even if my elisa test is non-reactive?what other tests do u recommend? Read more »

Reactive Elisa, Non-reactive Western Blot

Posted by Anonymous, 3 Replies
...I went in for an HIV antibody test 90 days post-possible exposure and the result came back reactive on the Elisa and non-reactive on the western blot. Are the antibodies produced in response to HIV unique or are they generic Read more »