Objective To analyze the clinical value of a passive particle agglutination(PPA)assay and enzyme-linked immunosorbent assay(ELISA)in detecting Mycoplasma pneumoniae in adult patients with pneumonia Methods PPA and ELISA were used to detect M.pneumoniae antibodies and specific M.pneumoniaeIgA,IgM,and IgG antibodies in90 serum samples from adults with community-acquired pneumonia(CAP).The results were analyzed statistically. Results Samples tested positive for M.pneumoniae antibodies at a rate of 72.2%(65/90)...