Doctor insights on:
Does Hiv Have Dna Or Rna
No: no effect on testing.Get a more detailed answer ›
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
Does hcv coinfection expand only window period for antibody tests of hiv? Or does it have any affection to window period or accuracy of hiv pcr test?
Ok the HIV RNA PCR will detect both hiv1and2 but what about HIV DNA pcr?would this detect both types even if it was designed for hiv1 only?
HIV: This is an RNA virus. It is called a retrovirus because when it enters a cell to create infection it is converted to DNA and intercalated into the cell's nuclear structure. The tests do not measure HIV DNA. You seem anxious over the possibility that you have HIV infection and you might want to chat with a therapist and stop having unprotected sex. ...Read more
No: No these are unrelated tests.Get a more detailed answer ›
Yes, but complicated: Trying to tell whether a person has HIV-1, HIV-2, or both, can get complicated. If a person has high risk exposures or has symptoms, he can see an HIV Infectious Disease doctor and trust the advice, but follow-up as instructed. There are many different tests (usually by various manufacturers) in different parts of the world, which happen to have different prevalences for various HIV strains. ...Read moreSee 1 more doctor answer
Hep c antibody rest reactive, qualitative RNA PCR says no RNA material found. Do i need further tests or i can relax that I have cleared. ?
What type of HIV test does a doctor preform on a person that got raped RNA HIV test for the virus itself or normal antibody HIV test ?
Likely antibody : The usual first test for HIV exposure is for antibodies to hiv. An in-office test is likely to be for antibodies. Please see this site for information and discuss the matter with your doctor. http://www.cdc.gov/hiv/topics/testing/resources/guidelines/correctional-settings/section4.htm. ...Read more
No: Htlv-i and htlv-ii antibodies won't interfere.Get a more detailed answer ›
Can hiv-1 RNA PCR detect hiv-2 at some point or can not detect?If you consider Poland, can you exclude HIV possibility with hiv-1 RNA PCR test only?
HIV Online: We are very experienced here with what we call HIV panic. There is little we will say that will ease your panic. HIV 1 in the disease you are at risk for in Poland in general. Your HIV RNA test is negative. If you cannot get past this worry then go get an HIV 1/2 antibody test with the P24 antigen test as well. Then test every twelve weeks. And if you are at risk get on Truvada (emtricitabine and tenofovir) to prevent. ...Read more
Had HSV DNA PCR test with CSF? Negative. Also had HSV 1/2 antibody (IgM), IFA with reflex to Titer, CSF. Negative. Can I still have HSV 1 or 2?
No HSV in CNS: With these tests, you're obviously under a doctor's care, maybe including an infectious diseases specialist or neurologist. They can answer these questions best. But these results effectively rule out HSV infection of your central nervous system. Something else is causing the problem. That said, the HSV IgM test is notoriously unreliable. You probably also had an IgG test, probably negative. ...Read more
Testing for HBsAg can give false positive after vaccination. Is it the case with Hepatitis B PCR also? Does vaccination affect DNA PCR result also?
Hepatitis B antigens: Positive hepatitis B antigens found in the blood are sign of infection, but antibodies to the antigens are signs of protection. Other antibodies are found in the beginnig of the infection. The vaccination is very good, but someindividual might not respond or might need repeat vaccination. ...Read more
Hepatitis C: You have gotten hepatitis C at some time but currently do not have active virus in your system. The PCR detects nucleic acid belonging to the virus, demonstrating its presence and the amounts. If you are undetectable do not worry, but keep up with your doctor and ask their opinion. ...Read moreSee 1 more doctor answer
An accredited Lab: Why do you want this test? Have you had an antibody test for hiv? Was it positive? If positive, HIV nucleic acid testing will confirm the infection. You were exposed to HIV and antibody is negative HIV nat will detect the infection earlier. You doctor can order these tests through a pathology laboratory. ...Read more
DNA vs RNA; does Genbank cover both DNA/RNA ID's? If Genabank is only DNA, where would I find a "database with RNA ID's?
What's the difference between HIV antibodies test and HIV antigen test? Because I had negative HIV 1/2 antibodies so does that mean I need a retest?
Possibly re-test: Once an individual has been exposed to an HI virus and its several antigens that individual's body produces anti bodies. After exposure it takes around 2 months for the antibodies to appear. So if the exposure was within two months, the antibody test needs to be repeated. If the antibody test is positive, tests for antigens need to be done, to confirm that the antibody test is not falsely pos. ...Read more
Is it possible to have an HIV p24 antigen, HIV antibody, and HIV PCR accurate 5 weeks after exposure?
Yes in part: The tests that detect actual HIV virus, such a the HIV viral load (pcr), will likely be positive 5 weeks after an exposure that results in transmission of hiv. The HIV antibody test may still be undetectable. So, if you are very worried about acute hiv, it is very important to discuss with your health provider so they do the right tests. ...Read more
No: This is determined predominantly by antibody testing rather than by PCR for HIV RNA (This is an RNA virus). The latter test does not differentiate serotypes. Type 2 is very rare outside of Africa and seems more difficult to transmit. There are also numerous subtypes of both Types 1 & 2 and this becomes quite complex since this virus mutates continuously. ...Read more
Are HIV RNA and HIV PCR the same tests? How soon after potential exposure can you get a conclusive result?
HIV viral load tests: The short answer is 'yes' -since HIV-1 is an RNA virus. We quantify how much virus is there per drop of blood by using PCR technology (polymerase chain reaction if you must know). These days, the tests are extremely good -so after an exposure, this kind of testing could pick up positive results within 2 or 3 weeks. If you think you've been exposed, see an ID doc immediately-they could help w/ meds ...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