title: Delayed hypersensitivity in mycoplasma pneumoniae infections.
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D002648:Child; D002675:Child, Preschool; D003168:Complement Fixation Tests; D006801:Humans; D006968:Hypersensitivity, Delayed; D009175:Mycoplasma Infections / Q000276:immunology*; D012882:Skin Tests; D013997:Time Factors