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Window period! Very worried from Brazil!
Hi doctors,

I was drunk and i had unprotected anal sex with a girl i just met during carnaval in Brazil, ok, i'm dumb.

After 30 days i had a 4th gen test - Non Reactive

After 6 weeks i had another 4th gen test - Non Reactive

After 2 months (63 days) i had this test (4th gen too) on a private laboratory:

ARCHITECT HIV Ag/Ab Combo assay
Non-reactive - C/O value - 0.16    
Cut-off point - 1.00

I didn't have any exposure since.

BUT, after 10 days of the intercourse i experienced symptoms like extreme nausea, mild fever, severe muscle pain, diffuse pain on the joints, gastrointestinal gas and pain, recurrent aphtous ulcers, shortness of breath, headache and some days of night sweats. And weeks after i had a lot of rash, red dots all over the trunk that still here on my chest and upper back. I'm feeling a lot of pain in the ear too.

Can those test, all 4th gens, be false-negatives? All were made on reliable laboratories here.
I suffer from extreme anxiety too, and i shouldn't exposed myself to this.

Thanks for the attention, and i admire a lot your work on this site.

Best regards from Rio.
Tchau!
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9 Answers
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Avatar universal
3 months post exposure is when you can obtain your conclusive negative test result.
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Yeah, that's what i've heard too. I'll need to wait till 5th june now (3 months).
OMG i'll try to survive till then.

I suffer from OCD a little bit, and i had all the symptoms. But the consecutive negative tests are calming me down.

I think the result it's unlikely to change, cause the tests were all 4th generations, and the cut-off value of the last one (2 months) was pretty low (0.16). What do you think?

Thanks for the reply Teak!
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I don't make guesses on HIV.
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I want to talk about probabilities, not guesses.

From my lack of knowledge on the subject i think that at two months the C/O value is more likely to be closer to the cut-off point.

But i'll have to wait anyway to get peace of mind. This is just to try to relief my anxiety a little bit since i'm staying 24/7 in front of my computer researching about HIV, even when i'm at work.

But thanks!


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You can receive your conclusive test result 3 months post exposure.
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One thing that i read is that the average window period after HIV virus infection is 25 days.

3 months is some kind of general range, to exclude the possibility of a misdiagnosis.

I think a 63 days (actually 9 weeks) HIV test its very unlike to change, despite all my symptoms, that can be due to stress and anxiety.

I'll take the 3 month test cause otherwise i'll not sleep, but i'm much more confident that the result will be non-reactive.
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Hey Guys!!!!

I did a test yesterday!!!! With 85 days (12 weeks)!!!!

Look Below:

PESQUISA DE ANTICORPOS  ANTI-HIV 1+2

Valor de Referencia: Nao reativo (NON REACTIVE)

SISTEMA MODULAR HIV Ag/Ab Combi - ROCHE:NAO REATIVO
LEITURA (INDICE S/CO):0.16
PONTO DE CORTE (CUT-OFF):0.90
LOTE:161304


Oh my god!!!! Non-reactive!!! I'm so happy!!! I had all the symptoms!!!!

Can i relax i little bit????

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Negative and you didn't have symptoms.
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1364665 tn?1291610692
Congratulations! you're definetly absolutely negative . Next time always wear condom and dont ever share your needles.
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