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Doctor insights on: Hiv 1 2 Antibody Test

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Dr. Ira Katz
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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Does Hiv 1-2 Antibody and antigen test after 11 years of exposure gives current Hiv status accurate? If results are negative for 2 times sametype test

Does Hiv 1-2 Antibody and antigen test after 11 years of exposure gives current Hiv status accurate? If results are negative for 2 times sametype test

Worried?: If I understand you correctly and it's been 11 years since exposure then you have nothing to worry about. after 2 negative tests done at the appropriate times. On the other hand if you have been having ongoing exposures for 11 years that's a different story. ...Read more

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Is HIV 1/2 antibody combo(cmia) test as accurate as ELISA test? Also if the combo test at 75 & repeated at 100 days concl. If they are non reactive?

Is HIV 1/2 antibody combo(cmia) test as accurate as ELISA test? Also if the combo test at 75 & repeated at 100 days concl. If they are non reactive?

HIV testing: Yes the combination of testing for p24 antigen and antibodies to HIV 1 ; 2 is quite accurate, even if done using techniques other than elisa. The negative results at >3 mos after exposure make it almost certain that you are not infected with this virus, although there have been very rare cases in which antibodies were not detected until 6 to 12 mos later. You are probably fine. ...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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What is the accuracy of HIV 1 & HIV 2 antibody screening test's result after 6 weeks from possible exposure? Thank you :)

What is the accuracy of HIV 1 & HIV 2 antibody screening test's result after 6 weeks from possible exposure?
Thank you :)

Exposure: If positive the testing is accurate. The natural history of the disease can be that many people will not be positive up to 12 weeks after the exposure and some even 6 months. ...Read more

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I got HIV 1/2 antibody screening combo(cmia) test 75 days in india after exposure but it came out non reactive, is it confirmatory?

I got HIV 1/2 antibody screening combo(cmia) test 75 days in india after exposure but it came out non reactive, is it confirmatory?

You're good: Love safely from now on. Barrier protection until you are finally with that one special person with whom you'll remain true for the rest of your lives. ...Read more

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Im concern i had labs drawn and one of the test hiv-1 antibody value <1.00 and range <1.00 but the result says "negative". What doea this mean?

Im concern i had labs drawn and one of the test  hiv-1 antibody  value <1.00 and range <1.00 but the result says "negative". What doea this mean?

Negative: You have a negative HIV test. "<" means "less than." the "range" means the result you would expect in someone without HIV infection (less than 1.00), which is also your result. That's why your test is negative. ...Read more

Dr. Ed Friedlander
1,422 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


Antibody (Definition)

An antibody is a protein the body's immune system makes to identify potentially harmful substances in the body. Antibodies attach to the substance on a molecular level and mark it so the immune ...Read more