Sir, My Igm Level is Positive with 1.200, and my IgA and IgG are Negative. I have taken vaccination of Thyroid, MMT,Meningnitis and other vaccinations for my Medical Examination on 3rd Nov'10. I have undergone my last medicals on 3rdNov'10 and everything was alright. On5th Dec;10 when i have undergone diagosis, my IgM levels show positive. Could you please tell me why it has happen so, and what is the treatment for it. I donet have any negetive symptons of TB. Please advice.