Diagnostic Value of Serum ELISA of Mycoplasma Pneumoniae IgM and IgG and Passive Particle Agglutination for Mycoplasma Pneumoniae Pneumonia in Children

MP-IgM was a sensitive indicator of MP infection in children with a high consistency and correlation with the reference positive standard of PA titer ≥ 1:160. For a more accurate diagnosis, testing of paired serum is still necessary, and a 4-fold increase in MP-IgG could be the supplementary diagnosis method.