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Doctor insights on: Hiv 2 Ab W Reflex To Immunoblot

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Dr. William Singer
16 doctors shared insights

Hiv (Definition)

Hiv infection is caused by a retrovirus....This retrovirus binds to CD4 cells (for the most part). You may detect the virus by several different methods. An elisa test (enzyme linked immunosorbent assay). You may also detect it by doing a test referred to as a western blot (a gel protein electrophoresis). Thirdly by pcr (polymerase chain reaction) which ...Read more


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Can normal blood tests detect signs of HIV two years after infection?

Can normal blood tests detect signs of HIV two years after infection?

Antibody to HIV: Routine blood tests do not examine for HIV and may not detect any abnormality due to HIV at two years after exposure. Antibody to HIV would be positive at that time. ...Read more

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What is the chance of me getting hiv-2?

What is the chance of me getting hiv-2?

Depends on behavior: If you are in west africa and do not take protective measures and precautions pretty good chance to get infected. ...Read more

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What is the likelyhood of me getting hiv-2 from first time?

Depends on behavior: If you are in west africa and do not take protective measures and precautions pretty good chance to get infected. ...Read more

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How are hiv-1 and hiv-2 different?

How are hiv-1 and hiv-2 different?

Different types: Hiv-1 and hiv-2 are different types of hiv. Hiv-1 comprises the majority of HIV infection in the world. Hiv-2 is usually found in africa, and rarely elsewhere. Both hiv-1 and hiv-2 can usually be detected through the usual hiv-1/2 antibody test. Hiv-2 is typically less aggressive/virulent and less transmissible (more difficult to pass from one person to another). ...Read more

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What are the differences between hiv-1 and hiv-2?

What are the differences between hiv-1 and hiv-2?

Source of infection: Hiv-1 is the more common form of HIV in the usa/europe, while hiv-2 occurs predominantly in west african nations, and former portuguese colonies, such as angola, mozambique, and brazil, and in parts of india (goa, maharashtra). Many hiv1 medications are effective against hiv2. Usa cases of hiv2 are projected to be several hundred, although estimates vary. ...Read more

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What is the definition or description of: HIV 1/hiv 2 western blot?

Immunoblot: Western blot is an antibody detection test. Viral antigens (the protein coat of hiv) are immobilized in a matrix (gel). These are then transferred to Cellulose membrane and a persons serum is exposed to it. Antibodies in the serum then bind to the proteins (ie gp120). Antibodies that do not attach are washed away. Chemicals are then applied to allow visualization of the bands. ...Read more

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Need doctor's help! what do you do if you have HIV 2? How do you know if you have hiv?

HIV : I am a bit confused. Your question implies you already have hiv. If so you need an expert to help you. Here is a site to find a specialist: http://www.Aahivm.Org. If you simply need testing your physician can help with this common request very easily. ...Read more

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Is it true that homosexuals are more likely to transmit diseases like hiv-1 and hiv-2 sexually?

No, but depends: No, it is not necessarily true that homosexuals are more likely to transmit hiv-1 and hiv-2 sexually. It ultimately comes down to the risk behavior of the specific sexual act that leads to HIV infection. Unprotected anal intercourse is the most risky, but whether that occurs with two men or a man and woman, the risk is the same. Unprotected vaginal intercourse is less risky followed by oral sex. ...Read more

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Can the inst hiv-1/hiv-2 antibody rapid test be reliable after 62 days to possible HIV exposure? Test results were negative. Could this be reliable?

Can the inst hiv-1/hiv-2 antibody rapid test be reliable after 62 days to possible HIV exposure? Test results were negative. Could this be reliable?

HIV Testing: No, unfortunately. For the routine HIV antibody tests you need a minimum of three months or 90 days and a safe view of six months. However there is testing that is much more reliable. This is the HIV pcr dna testing. This test, if negative after 21 days post exposure is 100% accurate if negative. ...Read more

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Is 30 day DUO conclusive or I have to wait for HIV-2 possibility. Also, I got a unprotected bj from a high risk partner, what are the chances of HIV?

It's conclusive...: ...and anyway there has never been a proved case of HIV transmission mouth to penis. You didn't need testing if that was your only potential exposure. But the DUO test is conclusive at 4+ weeks and covers HIV2 -- which is so rare in the US that it doesn't matter, with almost all cases in persons who caught it in Africa and their long-term sex partners. So no worries, don't have another test. ...Read more

Dr. Ed Friedlander
1,461 doctors shared insights

Human Immunodeficiency Virus (Definition)

Human immunodeficiency virus (HIV) is a lentivirus (a member of the retrovirus family) that causes acquired immunodeficiency syndrome (aids), [1][2] a condition in humans in which progressive failure of the immune system allows life-threatening opportunistic infections ...Read more