Chlamydia pneumoniae IgM test (DEIA1727) is developed for the detection of IgM antibodies specific to Chlamydia pneumoniae in human serum or plasma. The positive result is an aid for the diagnosis of acute Chlamydia pneumonia infection. The test is recommended to be run and interpreted in parallel with the CD's Chlamydia pneumoniae IgG (DEIA1726) and IgA (DEIA1728) EIA kits.