Home » Browse Health Topics » HIV and AIDS » Does the western blot test for hiv type two
Does the western blot test for hiv type two
Dear Ask The Doctor:
Hello, when I was pregnant I was diagnosed with oral hairy leukoplakia. As soon as i was diagnosed with it my doctor tested me for hiv. I had 3 different hiv tests done including the western blot test which he said was very accurate. When I was tested with the western blot would that detect the Hiv 2 virus? I still have signs of OHL but have tested several times negative, so I was wondering if it could possibly be HIV 2 and the tests that were used just didn't detect it. So using the most common hiv tests, do they tests for hiv 1 and 2? Thank you, and i'm very concerned about this.
Answer:Like the ELISA procedure, the western blot is an antibody detection test. However, unlike the ELISA method, the viral proteins are separated first and immobilized. In subsequent steps, the binding of serum antibodies to specific HIV proteins is visualized. There are no universal criteria for interpreting the western blot test: The number of viral bands that must be present may vary. If no viral bands are detected, the result is negative. Almost all HIV-infected persons with indeterminate western blot results will develop a positive result when tested in one month; persistently indeterminate results over a period of six months suggest the results are not due to HIV infection. However for those individuals that have had high-risk exposures to individuals where HIV-2 is most prevalent, Western Africa, an inconclusive western blot test may prove infection with HIV-2. HIV-2 is a retrovirus different from HIV-1 but related to it. HIV-2 is found mostly in West Africa and in countries with large West African population immigrants. Most enzyme immunoassays (EIAs) currently in use detect antibody to HIV-2 as well as HIV-1.
Sign In to join in the conversation.
You’re in good hands, meet ATD’s founding physicians.
Dr. Suneel Sharman
- Board Certified GP
- CMO ATD Health Network Inc.
- Adjunct Professor at U Of T
Dr. Kunaal Jindal
- Board Certified Plastic Surgeon
- Director ATD Health Network Inc.
- Fellowship Training Atlanta, GA
I was wondering if this rash can be hiv rash?
I have a rash on my foot for 4 mths, is it hiv rash. I went to a dermatologist, he said it an allergy
Confusion on PEP schedule
I'm on PEP was just prescribed today. I took my first pill this morning at 4am and now have the full 28 day prescript...
HIV Risk and Testing after Non-penetrative frot...
Hi Doctor. I recently had a brief encounter with a guy (about 10 days ago) whose HIV status is unknown. He gave me a ...
HIV Test Antigen/Antibody post 40 days
I have had HIV Test Antigen/Antibody post 40 days after possible exposure, it came back NOT DETECTED as the result. ...
Question about the possibility of HIV transmission
I wanted to ask a question about possible exposure to HIV infection. I was nearly penetrated by another guy (but i ma...
Kissing with open sore
I have kissed (open mouth for 5 Sec) a unknown HIV Status girl. i have small open sore inside a mouth. There is no bl...
Viginal fluids touched anal fissure
I had an anal fissure which bleeds sometimes.I recently had sex with a sex worker with condom. during the intercourse...
Blood exposure question
Hi there. I had a question about a blood exposure. I touched some blood onto my hands that had been dried from about ...
RNA HIV Test and 4th Generation DUO at 24 days?
Thank you so much for your service ahead of time, I was having protected vaginal sex 4 weeks ago when the condom ...
Can I trust OraQuick Oral home kit for HIV test...
I am worried about HIV. My partner is from Denmark. We normally use condoms, but the condom broke in an incident abou...