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Doctor insights on: Hiv Window Period Testing

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Dr. Mark Pack
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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What is the window period for p42 antigen/ antibody dual 4th gen HIV test? And the window period for HIV RNA PCR test? When can it be conclusive?

What is the window period for p42 antigen/ antibody dual 4th gen HIV test? And the window period for HIV RNA PCR test? When can it be conclusive?

See below: Please consult this site for a detailed answer. Nucleic acid tests are conclusive about a month after acquiring infection. http://www.sfaf.org/hiv-info/testing/hiv-test-window-periods.html ...Read more

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Can you tell me about HIV infection window period testing with rapid tests?

Can you tell me about HIV infection window period testing with rapid tests?

Variable: Most people have a positive test by three moths after infection, but it may take as long as a year. See this site for more information on other types or tests. http://www.sfaf.org/hiv-info/testing/hiv-test-window-periods.html ...Read more

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How conclusive is 4 th generation HIV testing after 4 wks exposure when negative and what are chances of positive in 3 mt window period?

How conclusive is 4 th generation HIV testing after 4 wks exposure when negative and what are chances of positive in 3 mt window period?

Repeated questions: It is offensive and an abuse of this powerful application to keep asking questions that have been answered already. Here is my answer as an ?HI.v expert who tests fife to ten patients daily. At four weeks I would never offer you the fourth generation or other HIV antibody test. I think it malpractice to do so. This early you would get the 100% accurate RNA test. ...Read more

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What is the window period of nucleic acid testing (nat) for hiv?

What is the window period of nucleic acid testing (nat) for hiv?

HIV Testing: Not sure where this comes from. This seems like old testing techniques. The most common acute and accurate testing is called the duo test. Here the antibody and the HIV specific p-29 antigen are tested together. This test can be 95% accurate by twelve weeks post exposure. The better, but more expensive, HIV RNA or dna testing can be accurate at 21 days post exposure. ...Read more

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What effects the window period of hiv?

Two or three windows: From the time of infection, tests for HIV nucleic acid become positive in 1-3 weeks, test for HIV proteins usually becomes positive in an other couple of weeks and antibody test may take up to three months or even longer. The time from infection to the time of detection is called window period. See this site for more info. http://www.cdc.gov/hiv/resources/guidelines/. ...Read more

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What is the window period for HIV detection?

What is the window period for HIV  detection?

3-6 months: Standard HIV screening tests actually test for the presence of antibodies that the body makes to fight the HIV virus. The period of time for the body to make antobodies is called "the window period". It varies in each person, but it is usually between 3 to 6 months. If you have the pcr test looking for viral rna, period is 10-14 days. ...Read more

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Could HIV be spread during the "window period"?

Yes: Patient who are "recently" infected with HIV but are not yet testing positive for the virus (in the window period) are potentially infectious and can spread the virus to others. ...Read more

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What is the minimum window period for HIV detection?

HIV Testing: If you have access to the HIV RNA viral testing then by day 14 to 21 you will be able to determine if you have the HIV virus. ...Read more

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Some people have a long HIV window period. Why is that?

Some people have a long HIV window period. Why is that?

Unique immune system: Every person has a unique immune system. Factors such as genetics, nutrition, and other infections (such as other genital infections and other systemic diseases) can impact the 'window' period when the person is asymptomatic. In addition, there are many different strains of hiv, some of which are associated more aggressive behavior than others. Each person's response is unique. ...Read more

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What are factors that change the HIV window period from 3 to 6 months?

Misunderstanding: Hiv has no window. An exposed individual will experience infection fully within fourteen to twenty one days after exposure. A good HIV viral test will be 100% accurate in diagnosing this infection from that point forward. Antibody testing is slower detecting infection because the human body creates these HIV antibodies slowly. 95% of them, however should be diagnosable at 12 weeks, 100% by 24. ...Read more

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If someone has HIV and shows symptoms of HIV will they test positive for it if it's during the window period?

If someone has HIV and shows symptoms of HIV will they test positive for it if it's during the window period?

Contradiction in: terms. Window period is a few weeks after acquiring infection. If there are symptoms of HIV, it is no longer in the window period. ...Read more

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What is the true Window period for HIV? I have had a test 5 months after exposer to a women with unknown risk it was negative and it still worries me.

What is the true Window period for HIV? I have had a test 5 months after exposer to a women with unknown risk it was negative and it still worries me.

6 months is: probably a good time to stop testing post exposure. I would recheck again in 1-2 months and if that is negative, I wouldn't worry anymore. ...Read more

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What is the window period of HIV test?

Time to turn positiv: After you get infected w/hiv (not every exposure leads to infection), there is a period of time where your tests will remain negative, depending upon you & your test. Therefore, you can also get HIV from someone who tested negative! assuming they tested during their window period. Check out http://www.Sfaf.Org/hiv-info/testing/hiv-test-window-periods.Html for more info. Practice safer sex! ...Read more

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What is the HIV window period for occupational exposure?

Variable: The window period is the time from exposure to time a test for HIV becomes positive. The window period depends, in part on the type of test done. Test for HIV nucleic acid is generally positive by three months, usually sooner. Antibody test may take up to a year to turn positive. ...Read more

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How are the "incubation period" and "window period" of HIV distinguished from each other?

How are the "incubation period" and "window period" of HIV distinguished from each other?

Difference: Incubation period: time when the person is first exposed to the virus to the time when the diesase start to manifest itself window period: time it takes for the test used to diagnosed the disease can reliably detect the disease; in HIV the elisa test is used to detect an antibody against the virus, it takes around 2-6 weeks for the immnune system to produce it, during this period elisa is (-). ...Read more

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If I'm showing signs and symptoms of hiv, even if its before the window period is up, will I be able to test positive?

Depends: It is very unlikely that your symptoms are due to HIV, if you are in the window period. By definition, antibody tests are negative in the window period. If you get a HIV nucleic acid test, that is the earliest test to turn positive in a person with HIV. But a negative result on a test done too soon does not rule out infection. Visit this site for info. http://www.cdc.gov/hiv/basics/testing.html ...Read more

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Window periods hiv test. I had 4 test hiv combo after 94 days negative.But my country state window period 6 month. Malaysia. ?

Window periods hiv test. I had 4 test hiv combo after 94 days  negative.But my country state window period 6 month. Malaysia. ?

4 weeks. Believe it.: Only a few companies make most of the HIV tests used worldwide. The window period for the combo test (also called duo or 4th generation test) is the same everywhere, 4 weeks. That a particular health department or agency takes a conservative stance and promotes longer periods is a decision based on legalities, politics, and social context. I can't say why some agency in Malaysia says 6 months. ...Read more

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If I test negative for HIV three months after my last encounter, should I be fine? 3 months is the appropriate window period right?

If I test negative for HIV three months after my last encounter, should I be fine? 3 months is the appropriate window period right?

That's up to you: Consider yourself healthy if it's one of the new-style tests that's essentially always positive by 3 months (actually quite a bit less). But you will be FINE when you become a mature lover, always loving safely out of respect for your own body and for the other person's. Don't put yourself or anyone else in situation like this again. Think ahead of the love with that one special lifetime person. ...Read more

Dr. Ed Friedlander
1,456 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