Chlamydia blood tests are pretty much useless. The problem is that the test remains positive indefinitely, so it detects both current and past infections. In addition, it cross-reacts with Chlamydia pneumoniae -- which as the name implies is nonsexually transmitted and a common cause of respiratory infections like colds, bronchitis, and pneumonia. For these reasons, the large majority of positive results do not indicate a current genital (sexually transmitted) chlamydial infection.
I'm not surprised to learn you aren't in North America, where chlamydia blood tests are rarely done except in evaluating women for infertility, and even these are of uncertain value.
There are two choices here. The most efficient may be for your partner (and you, despite your own negative test) to be treated for possible chlamydia. All it takes is a single dose of azithromycin, so it's quick and simple. The other option is for your partner to have a proper chlamydia test, i.e. a swab from the cervix to test directly for chlamydia. If that's negative, you would have to worry about it.
Doctor,
this is a pure follow-up question and I would like to ask your feedback (let me know if you judge I need to pay the fee again). The relationship with this lady became serious and we decided to get tested for STD's for a common peace of mind.
Whereas HIV1/2 AG P24 turned again negative, just as Hep C and Syphil (VDRL and TPHA ... in French), the Chlam test proved to be positive for her.
Before writting to you I checked all over on the web but could not find an answer as to see how relevant a blood sample IgG Chlam Trachomatis can be ...
She has a value of 2.57 (index showing that values above 1.1 are positive).
I have a (negative) value of 0.15 but we had unprotected sex for around 10 sec after the test but before having the results ...
Could you tell me what to do ? Need for other tests (swab ?) ?
Are/is IgG a value like a serological scar or do I mix this up with IGM ?
Really looking forward to your answer because I am abroad in a country where I cannot easily see a physician.
Just as you were at no material risk for HIV, you also are not at significant risk for STDs from these exposures, with the possible exception of HPV -- and everybody gets genital HPV anyway and you're at no higher risk from these exposures than any other. And most HPV infections are never noticed and there are no tests for it. I don't recommend any STD testing of any kind.
Your question about HIV risks was answered by Dr. Hook and we're not going to over old ground again.
This thread will be moved over to the STD forum. But let's not have a string of follow-up questions or comments. There is really nothing more to say, and no information you can provide that would alter my opinion or advice.
HHH, MD
last but not least : thanks for your great support on this site to both of you and sorry again for the wrong forum posting - realized once paid - ...