Cpnhelp.org

Prior to starting CAP, my titer results were significantly high 1:512.Both the Chlamydia Pneumoniae (Chronic Form) IgGi (which is a more general test and can be cross reactive with other forms of Chlamydia. The Chlamydia Pneumonia (Specific Antibody) titer IgA , resulted in the same high 1:512. The Chlamydia Pneumonia IgA specifically identifies the species as Chlamydia Pneumoniae, to differentiate it  from some of it’s cousins. A as far as the active form of Chlamydia Pneumoniae, I was IgM was negative.    So perhaps you might want to test for the Chlamydia Pneumoniae IgA antibody titer to help with your decision about your concerns. 

Thank you Louise!, in fact I thought that my results show that I had a contact with cpn but created antibodies. Therefore i shall not worry.But in this case I undrstand there is a risk of active infection, yes?

I'm curious as to what your doctor said about your test results?

Alte, welcome... you might be interested in reading this link from the  handbook... http://cpnhelp.org/how_chlamydia_pneumoniae_  as well as other information on the cryptic form of CPN.   JeanneRoz   

High IgG levels, like the ones you report, usually are interpreted to mean that you had an infection recently but that it is now over. (That is, if the IgM antibodies are low. If they too are high, it means the infection is very recent, and maybe not over yet.) That's the usual interpretation of antibody levels, and for most diseases it's a good interpretation. "Recently", for IgG, means something like a year or two; that's about how long the body keeps on producing IgG antibodies after the infection is over. (Of course that's a very rough figure, which varies from disease to disease and is more like a half-life than a fixed time cutoff.)

With Cpn, however, high IgG levels usually indicate an ongoing infection. It's a chronic disease, which the body usually doesn't extirpate on its own. As for whether you should worry about it: you might choose not to, especially if you are in no particular distress at the moment, since it's commonly quite hard to find a doctor who is willing to prescribe the necessary type, amount, and duration of antibiotics to eradicate it. But athough it is normal to have a certain amount of Cpn living in you, it is also normal to die of a heart attack; and Cpn has been strongly implicated as a major cause of heart attacks.

Thank you for your help! I suppose I will go to see some pneumologist to have an opinion.From what I read it should be a mix of antibiotics with duration from months to years. Should I test for some other commonly related diseases? I am a smoker (1 pack a day).. Live in Sao Paulo, Brazil.

i was under treatment for RA for 4 years, but symptoms were mixed, and it was felt that I may have psoratic arthritis/ reactive arthritis, hence the chlamydia Ig tests were done. chlamydia trachomatis was negative but chlamydia pneumoniae was very high. what does this signify?? I had severe bronchial pneumonia about 13 years ago, but am currently having a cough / sinus infection.