Chlamydia false positive?

[dawnwa]

My husband and i have been a mutually monogamous relationship for 12 years. We've both only been with each other - no other partners. I just had our 2nd son in July 2009. At the beginning of my pregnancy I wast tested for Chlamydia and it came back negative. I went to the doctor for an IUD and was told my postpartum test came back positive for Chlamydia. He said with my level of 900 that he didn't think there was any need to retest and prescribed the drugs to treat it. I immediately talked to my husband about it and he confirms he has not cheated and I believe him. He was also tested and it came back negative. I know I have not been with anyone else. Is it still possible with a level of 900 that I had a false positive? Is it possible to get it any other way than through sex? I have not had any type of sex - oral or vaginal - with anyone except my husband

[dawnwa]

Also - I just read that an EIA can cause a false positive if Group B Strep (GBS) is present. I tested GBS+ at 35 weeks pregnant with my son. Are all swab tests EIA tests? Could this mean that it was a false positive?

[Dallasfan]

The positive Group B test did not interfere with the ELISA chlamydia screen. You are right, the ELISA test does have about a 5 % false positive rate. Best to go for testesting. An early morning urine NAAT test or direct cervical culture would be my recommendation.

[dawnwa]

The original test was a cervical culture. This test was done 3 weeks ago. I was informed by my doctor 2 weeks ago about the positive test and he prescribed the antibiotic for it then. 2 pill taken in 1 day. So no point in being retested now. I will retest in a few weeks to confirm its cleared up - if it was ever there in the first place.
I'm just so confused as to how I am positive and my husband is negative since I've never been with anyone else. I also know that he is negative - saw the test myself - and didn't discover it prior to my discovery and get treated without my knowledge.

[Dallasfan]

Ok I will ammend my answer. There are no false positives with cervical cultures. You both need to be treated. This is a new infection.

[rrrrrry]

So what are saying?  That she had to have had sex with someone else in order to have gotten the infection.

[dawnwa]

So you're saying my husbands test was a false negative? I know the test came back negative - I saw it myself. I also know that he was not tested and/or treated for it before I got my positive results. We have not had sex since I was diagnosed and treated. Even before then we hadn't had sex since our son was born - so 8 weeks no sex, then a positive result meaning I would have gotten it sometime between getting pregnant and having my son - then we 3 times between my postpartum check and being told about the chlamydia. Since then we have not had sex. Should I ask him to test again?