Top 20 Doctor insights on: 6 week hiv test

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According to WHO, 6 weeks HIV test is conclusive (unless I miss understood it) then why CDC recommends 3 to 6 months for conclusive results?

According to WHO, 6 weeks HIV test is conclusive (unless I miss understood it) then why CDC recommends 3 to 6 months for conclusive results?

The "Window Period": Window period is the time it takes lymphocytes to develop antibodies to an antigen. This is usually 4-6 weeks but can be as long as 3 months. By 3 months after exposure...97% of people will have antibodies to antigen. In rarer instances it may take up to 6 months to develop antibodies. After 6 months. 99% of people exposed will have antibodies to viral antigens. Therefore the 3 to 6 months!!! ...Read more

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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I did 4th Generation HIV test after around 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 15 weeks of an exposure. Is this 100% conclusive? Can I get back safely to my wife

I did 4th Generation HIV test after around 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 15 weeks of an exposure. Is this 100% conclusive? Can I get back safely to my wife

Sero-conversion: The whole concept of delayed sero-conversion dates back to old & sloppy tests. PCR testing now will show virus in the blood with or without antibodies. If you need to cling to the old adages...at 6 months. 99.99% of the population will have developed antibodies after an exposure. Thus the 6 month window. I believe a colleague of mine Lyssette Cardona, MD is in Dubai. She's one of the best!! ...Read more

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Can you tell me how accurate is my 6 weeks HIV test?

Can you tell me how accurate is my 6 weeks HIV test?

Not accurate: You failed to share what kind of HIV test you are referencing. But the standard HIV antibody test should never be done at six weeks post exposure. It would be way too soon to test. Twelve weeks will give you about a 90% validity. ...Read more

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According to WHO, 6 weeks HIV test is conclusive (unless I miss understood it) then why CDC recommends 3 to 6 months for conclusive results?

The "Window Period": Window period is the time it takes lymphocytes to develop antibodies to an antigen. This is usually 4-6 weeks but can be as long as 3 months. By 3 months after exposure...97% of people will have antibodies to antigen. In rarer instances it may take up to 6 months to develop antibodies. After 6 months. 99% of people exposed will have antibodies to viral antigens. Therefore the 3 to 6 months!!! ...Read more

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How sensitive is a six week oraquick HIV test?

Depends: The test is sensitive in detecting antibodies to HIV. However, some people may not make antibodies for up to a year after infection. If you are concerned about infection, please ask for a HIV nucleic acid test. ...Read more

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I've read that its very rare for a negative HIV test at 6 weeks to turn positive at 12. Is this accurate?

I've read that its very rare for a negative HIV test at 6 weeks to turn positive at 12. Is this accurate?

Yes: Yes. However, if a person (unwisely or unfortunately, depending on his or her life's circumstances) has recurring possible HIV exposures, he may get a screening test every 3 months. The is for people who have REAL recurring possible HIV exposures, but NOT for people who don't have recurring exposures but can't stop worrying about a past possible HIV exposure, which would be a treatable OCD issue. ...Read more

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I did 4th Generation HIV test after around 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 15 weeks of an exposure. Is this 100% conclusive? Can I get back safely to my wife

Sero-conversion: The whole concept of delayed sero-conversion dates back to old & sloppy tests. PCR testing now will show virus in the blood with or without antibodies. If you need to cling to the old adages...at 6 months. 99.99% of the population will have developed antibodies after an exposure. Thus the 6 month window. I believe a colleague of mine Lyssette Cardona, MD is in Dubai. She's one of the best!! ...Read more

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Help please? What is the accuracy of oraquick HIV test after 45 days post exposure (6 weeks)?

Help please? What is the accuracy of oraquick HIV test after 45 days post exposure (6 weeks)?

Depends: The test is sensitive in detecting antibodies to HIV. However, some people may not make antibodies for up to a year after infection. If you are concerned about infection, please ask for a HIV nucleic acid test. ...Read more

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I've read many times a negative HIV test at 6 weeks is very unlikely to change at 12 weeks. Why do they keep saying wait 3 months?

I've read many times a negative HIV test at 6 weeks is very unlikely to change at 12 weeks. Why do they keep saying wait 3 months?

To be sure: It can take more than several weeks for some people to develop an antibody to HIV, but less than 3 months. So by retesting at 3 months or later there would be little or no chance of missing that a particular person has acquired the virus. ...Read more

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What percent, is a negative Hiv test result. At 6 weeks? Do I most likely not have it then. And what are the odds of contracting it one time exposure

What percent, is a negative Hiv test result. At 6 weeks? Do I most likely not have it then. And what are the odds of contracting it one time exposure

HIV nucleic acid: Test. A negative antibody test at 6 weeks does not exclude HIV infection. A negative HIV nucleic acid test would. The odds of getting the infection depends on the type of exposure and the viral load in the fluid to which you were exposed. ...Read more

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Is 8 weeks HIV test enough?

Is 8 weeks HIV test enough?

No: Current recommendations include testing for antibodies at three and six months as well for the rare individual who does not immediately develop measurable antibody titers. If you wish to pay for it you can be tested negative (or positive) immediately by checking for HIV rna. ...Read more

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How accurate 10 weeks HIV test?

How accurate 10 weeks HIV test?

HIV: The new 4th generation testing for antibodies is incredibly accurate by 10-12 weeks, but there is always that rare individual who has delayed antibody response and may not be positive for up to 6 mos. If one wishes to be certain they can undergo pcr for hiv-rna ($$$) which is definitive within 2-4 weeks or earlier. ...Read more

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Is home HIV test accurate at 3 weeks?

Depends: Home tests depend on antibody and three weeks after exposure is usually too soon to test as antibodies take longer to develop. No test will exclude HIV infection this soon after exposure. You may discuss getting an HIV nucleic acid test at about 6 weeks after exposure. ...Read more

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How precise is HIV test after 9 weeks?

Hiv: Hiv-elisa test is not useful within 6 months after exposure. During this time 'hiv-pcr viral load' will be the right test. After 6 months, first hiv-elisa, if positive, then followed with 'westen blot' test to confirm the diagnosis. ...Read more

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Is combo HIV test conclusive at 3 weeks?

Is combo HIV test conclusive at 3 weeks?

HIV: Antibody testing should be repeated at 3 mos and many will test again at 6 mos. If you need definitive response before then you can ask for a pcr for viral rna. If that is negative you are negative. But that is expensive. ...Read more

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How accurate is the HIV test after 7 weeks?

Pretty accurate: Most people will develop antibodies to HIV 6 weeks after exposure. Current (4th generation) HIV tests look for evidence of viral antigen as well as antibody. ...Read more

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How accurate is DUO hiv test after 10 weeks?

About 95%: The specificity of a negative DUO HIV test is 100% after 12 weeks of possible exposure. After 10 weeks, a negative DUO HIV test test indicates that there a 95% chance that the person is HIV negative. However, a small percentage of people exposed (5%) will have antibodies form up to 12 weeks after exposure. ...Read more

Dr. Dominic Riganotti
376 Doctors shared insights

Hiv Test (Definition)

There are several ways to detect the HIV virus. The first is by antibodies. This includes eia (enzyme immuno assay). The rapid HIV tests are these types. The second way detects proteins on the viral coat (western blot). This is a gel plate electrophoresis. Thirdly there is pcr (polymerase chain reaction). This detects and amplifies dna allowing a viral ...Read more


Dr. Ed Friedlander
1,487 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