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Author Topic: Ab/Ag testing and onset antibodies  (Read 4164 times)

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Offline ACCC

  • Member
  • Posts: 5
Ab/Ag testing and onset antibodies
« on: January 10, 2009, 08:04:49 am »
Hi there,

First timer here and wanted to know how much the testing window is reduced by using combined Ab/Ag testing over standard antibody only tests.

I guess what I'm asking is, how long does it take for p24 antigens to appear after exposure?

then at what stage do they disappear and antibodies take over?

And is there a "gap" period where counts for both are so small that they are undetectable?

Cheers

ACCC
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Offline Andy Velez

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  • Posts: 34,126
Re: Ab/Ag testing and onset antibodies
« Reply #1 on: January 10, 2009, 08:45:23 am »
Why are you getting tested? What risky activity(ies) have you engaged in which cause you to think you have been exposed to the virus?
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Andy Velez

Offline ACCC

  • Member
  • Posts: 5
Re: Ab/Ag testing and onset antibodies
« Reply #2 on: January 10, 2009, 07:19:55 pm »
Hi Andy,

I thought you might ask that and I feel that you may say not to worry based on my situation. none the less I am worried and am just looking for some reassurance. So here it is...

Unprotected oral and protected anal (giver) at a beat. here's the dodgy bit - I didn't realize till the following day that I had an abrasion on my hand from moving furniture the day before. it would most definitely have been broken skin, but i'm not sure if any semen came into contact with it. I know this is most unlikely that I managed to contract anything through the abrasion (kind of like a carpet burn) but I just wanted to know about antigen testing windows as some kind of reassurance.

I didn't think much about the abrasion issue until symptoms started appearing at about 1 week after contact.

Lymph nodes pain in arms and neck
athralgia ankles and wrists
sore throat
nausea
general malaise
 
my tests so far (all Ab/Ag for Hiv-1 and Hiv-2)

1 week -  neg
2 weeks - neg
4 weeks - neg
5 weeks - find out tomorrow

I'm really just trying to find out at what stage after symptoms appear do antigens and antibodies show up.

thanks for any advice in advance

ACCC
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Offline RapidRod

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  • Posts: 15,288
Re: Ab/Ag testing and onset antibodies
« Reply #3 on: January 10, 2009, 07:30:35 pm »
At no time were you at risk of contracting HIV and at no time did you need testing.
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Offline ACCC

  • Member
  • Posts: 5
Re: Ab/Ag testing and onset antibodies
« Reply #4 on: January 10, 2009, 07:37:06 pm »
hi RapidRod,

thanks for your reply. I totally understand your answer and think the same thing - there is no way i could have contracted HIV

BUT let's say hypothetically i did contract it, can you give me an idea as to the onset of antigens/antibodies after symptoms appear?

Many thanks

ACCC
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Offline RapidRod

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  • Posts: 15,288
Re: Ab/Ag testing and onset antibodies
« Reply #5 on: January 10, 2009, 08:03:29 pm »
Had you had a risk a DUO test is conclusive at 3 months post exposure.
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Offline Andy Velez

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  • Member
  • Posts: 34,126
Re: Ab/Ag testing and onset antibodies
« Reply #6 on: January 10, 2009, 08:33:40 pm »
Quote from: ACCC on January 10, 2009, 07:37:06 pm
hi RapidRod,

thanks for your reply. I totally understand your answer and think the same thing - there is no way i could have contracted HIV

BUT let's say hypothetically i did contract it, can you give me an idea as to the onset of antigens/antibodies after symptoms appear?

Many thanks

ACCC


No, let's NOT say hypothetically that you did contract 'it.' Yours was a non-risk situation. Period. You used a condom. They provide very effective protection against HIV transmission. And HIV is not transmitted through bruises or other "broken skin" circumstances such as you have described. You are worrying needlessly.

You have no need to get tested unless you're going to bother yourself (unnecessarily) about it. In which case as Rod has indicated, you need to get tested at 13 weeks for a conclusive result.

And that's only for your peace of mind because getting a negative is a slam dunk based on what you have reported took place.

As for your symptoms list, nothing is in any way HIV-specific and if you continue to be worried, you should be discussing them with your doctor. They have nothing to do with HIV. Really.
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Andy Velez

Offline ACCC

  • Member
  • Posts: 5
Re: Ab/Ag testing and onset antibodies
« Reply #7 on: January 10, 2009, 08:58:07 pm »
hey thanks Andy and Rapid.

I take it you guys in the US don't have Ab/Ag testing as standard. here in australia it is the norm. they use the duo test whether you're high risk or not. and it's free on our medicare system

I pity you guys and your health system. I can't believe the richest country in the world can't even care for it's own sick people. tragedy.

thanks for your advice and great monitering of this site.. excellent!

ACCC
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Offline ACCC

  • Member
  • Posts: 5
Re: Ab/Ag testing and onset antibodies
« Reply #8 on: January 10, 2009, 09:29:58 pm »
Oh and Rapid,

sorry about the PM. I didn't read the rules. slap on wrist for me!
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