Can anyone share your wisdom on Mycroplasma? Here are some of my daughters blood test results. M Pneumonae AB, IGM, BY IFA Positive. M Pneumoniae AB IGG, S - 4.2 range is <.91. MPneumoniae AB, IGM, S 2.12 - range <.91. IGG subclass IGG3 - 115 range 11.5-105.3. Does this mean she has an active infection or just that she has had an infection in the past? Do these numbers mean anything important in regards to PAN treatment? If so what have some of you done? Several weeks before I get in to see her doctor. Thanks for any wisdom.