Doctor insights on:
Hiv 1 2 Elisa
Is 4th generation ag/ab conclusive for BOTH hiv-1 & hiv-2 after 6 months (& multiple tests before this) of unprotected sex? Is further testing needed?
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
I tested for hiv 1&2 Ac./Ag. P24 Elisa 6 mnths ago it was negative for 0.28. I tested today negative 0.74 am I risky? Y it increased? Is it negative?
Definitely negative: There is no meaning to changing numbers on HIV testing, as long as the number is below the cut-off for a positive result. Even the same blood specimen tested 10 times will give 10 different numbers, up or down. Your results are definitely negative. No additional testing is needed unless or until you might be reexposed to HIV. ...Read more
I had a protected sex with sex-worker. After 16days the test: hiv (1&2)ab/ag (p24). Result:0.178 (negative). Method:elisa can I be sure? The accuracy?
Does a negative hiv-1 western blot at 6 months (no ELISA was completed only wb) indicate no hiv-2 as well? Or should I screen again?
Western blot: Most sensitive test available. Negative excellent.Get a more detailed answer ›
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
What is the difference between ELISA test and elfa test for HIV testing. I had a risky adventure and tested negative for HIV 1 and 2 as per elfa test?
Shorter detection: Elfa is the new version of the elisa test; it has about a 5 day shorter detection time, being 95% sensitive at 28 days. ...Read more
What is the difference between ELISA test and elfa test for HIV testing. I had a risky adventure and tested negative for HIV 1 and 2 as per elfa test.?
Always learning: Elfa is a variant on the elisa that is in use in some areas. I apologize for not having been familiar with it. ...Read more
Is ELISA test for HIV 1 & 2 antibodies conclusive after 8-9 weeks of exposure? Does NON-REACTIVE mean NEGATIVE?
ELISA for HIV: The ELISA test is not conclusive after any amount of time. The ELISA is a screening test and if it comes back positive, a Western blot will need to be done. Non-reactive is a good thing to be and it does mean that you are negative for HIV virus. Although there is a window period when you can have the HIV virus but still have a nonreactive result. Another test may be needed in that case. Suerte ...Read more
I did duo test hiv 1, 2, 3 and 7 monthes postrxposure. I did elisa 9 and 16 months all negative. At 14 monthes I got perianal fungal infection. Is tht hiv?
Stop worrying: Fungus on your hind end is not AIDS and you owe it to yourself to stop triubling yourself with concerns like this. You need to be thankful for good health. You would probably find it helpful to get with a group of folks who do fitness training together. These unwanted fears about health may vanish when you refocus on high level wellness ...Read more
Prolonged fever (>7w)+swollen painful lymph nodes (neck and behind the ears)+headache. Tested -ve for HIV (ELISA 1&2), Hep-B&C, VDRL what else could it be?
Many causes: There are many causes for swollen lymph nodes and fever. Remember there is a window period for HIV testing - about 3 months and hepatitis up to 12 weeks! Other causes could be infectious mononucleosis, fungal infections, TB, even cancer. You need close follow up with your doctor for more testing. Good luck ...Read more
Yes: While it is possible, it is very uncommon and infrequent. ...Read more
I had a oraquick HIV 1/2 oral test done two days ago. The results were negative. How accurate are those results? Last exposure four years ago.
Pretty accurate: According to cdc site, "in the clinical studies by the manufacturer, the oraquick oral fluid test correctly identified 99.3% of people who were infected with HIV (sensitivity) and 99.8 % of people who were not infected with HIV (specificity)." of course, if you have symptoms of viral illness or characteristic opportunistic infections, get the standard blood test for confirmation or denial. ...Read more
Do HIV 1 and HIV 2 DNA differ form each other? And is there seperated DNA PCR tests for each or one is enough to catch both?
You mean RNA: These are RNA-based retroviruses. The PCR assays for the two strains are distinct. ...Read more
Is a HIV blood test hiv-1/0/2 antibioties test conclusive after 4th months past exposure? It came out negative also took two oraquixk at home negativ
No: It is recommended that you test also at 24weeks which would be 6months. Rarely does the test become positive after this but on a few occasions seroconversion had taken up to a year to occur. Get a counselor knowledgeable about the disease to talk to. This will help your anxiety level and use adequate protection in future ...Read more
I'm 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?
It is HIV: Hiv is human immunodeficiency virus--type 1 or 2...Does not matter which type...It is transmitted via sexual/vaginal/anal intercourses, needle sticks/sharing, and mom-child transmission during pregnancy/birth (vertical transmission)...Kissing and simple touching does not transmit the disease... ...Read more
Human immunodeficiency virus (HIV) is a lentivirus (a member of the retrovirus family) that causes acquired immunodeficiency syndrome (aids),  a condition in humans in which progressive failure of the immune system allows life-threatening opportunistic infections ...Read more