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4th Generation/DUO test

HIV test

After 12 weeks of incident, the HIV 1/2 EIA with reflect is NOT REACTIVE and also HIV-1 RNA quant real time PCR (< 20) is NOT DETECTED (negative). Does this confirm negative result or further testing is required?

ELISA 4th Generation DUO

Hi volunteer,
I had unprotected oral sex but protected vaginal sex with a sex worker 2 weeks ago. So two weeks later (15 days) I went to do a ELISA 4th generation duo test, and the result came out negative. Do you think this result is reliable? I know the official testing is the antibodies test 3 months after exposure but I have great anxiety and can't sleep well every night


hii there..im confused about window period of p24test,some sites I read said
p24 can detect soon between one week to 3 weeks,before it disappears because antibodies are formed.for example a person forming antibodies after 2 months,Whether p24 stay there until 2 months or only three weeks and subsequently lost?i had duo test in 2 weeks exposed,non reactive....can i trust it?

HIV - !!!

hello i had unprotected sex with unknown status woman ! 25 weeks later i did "ECLIA Ag/Ab HIV 1+2"
came non reactive.
what is the accuracy of this test ?
do i need further testing ?

worried part 2

thx for anwer my quetions.....you said "When considering this activity alone, testing is not essential due to it being a negligible risk, however seeing that you are sexually active, testing is always a valuable practice to consider as it is the only way to find out one’s HIV status"but I had this the first time sex intercourse that is receiving oral,I have a test after seven days with duo test and non reactive...But i am not sure,When the fastest time can detect an antigen? my fear grow after four days i feel flu but no fever until this days..plz help me thx so much.

HIV worried

Hi i had unprotected vaginal sex with HIV positive woman and after 3 months i did the following :- 4 Rapid ELISA Tests- Tri-Dot Rapid Test- MEIA HIV ABS analyzer- ECLIA P24/AB analyzer- ELISA P24/AB analyzerAll negative but im still worried . what do you recommend ?

testing HIV after 45 days .

hello volunteer. 
I perform HIV testing and the report is with me its written in french like this:
EIA Biomerieux france ,
AC anti HVI I et HVI II : Negative 
the index is : 
ce test est base sur la antigene P24 de VIH I et des Ig G anti VIH I et VIH II.
Is this result is conclusive? 

Male 83 - False negatives

Dear Sir/Madam
Is it possible Hiv combi test (elisa) to show a false negative result in case you have been infected many years ago? (The question is due to some comments found in the web, where some people state that some test did not recognize the virus since the infection took place many years ago etc - which i do not


Is there any published data that show test accuracy and validity for the DNA PCR based on the number of days from exposure?  I tested on day 10 from a possible exposure and I would like to know if there is anything that shows accuracy of this test at day 10.
I realize I should do the antibodies test later to be most certain, but I am aslo wondering if maybe I should take the DNA PCR test again, now that I am on day 18 or should I trust the 10 day and just wait?  Would the 18 day be enough time from the 10 day to have any higher accuracy?
Thank you


hii there..i had oral sex unprotected,im a man and received oral from Female sex workers  about one minutes I ejaculation and and I got home...im very scared...in 2 days im had a symptoms...nausea and tire.If symptoms appear as soon as it?can i test in 2 weeks with 4th generation/duo test??What fear i make all symptoms out ?If there is little blood in her mouth is saliva can kill the virus itself ??but I don't see the blood.thank you.


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