Provided herein are methods for the determination of antigen-specific CD4+ T cell phenotype and/or frequency, which is useful for detecting or monitoring immune function, directing immunotherapy to the use of those epitopes or antigen fragments that elicit an allergic reaction (e.g., as measured by detection of a Th2 response) and/or promote immune deviation, monitoring an immune response to a particular antigen, etc.
DIRECT ANALYSIS OF ANTIGEN-SPECIFIC IMMUNE RESPONSE