I'm wondering if anyone here has had their synovial fluid tested for CPN or other infections? I was positive for chlamydia years ago, treated with a single course of azithromycin which later showed negative in urinalysis. But, maybe I was infected long enough or it was able to switch to its dormant form without being completely killed off. I'm currently considering this as a thread to investigate for myself, not sure how to convince a specialist to pull fluid though. This might explain why some respond so well to ABX, only to have it come back. CPN treatment is usually a long combination antibiotic course.
What do you guys think?