Mycoplasma pneumoniae infections.
D000293:Adolescent; D000328:Adult; D002648:Child; D002675:Child, Preschool; D003168:Complement Fixation Tests; D005260:Female; D006801:Humans; D007223:Infant; D008297:Male; D009175:Mycoplasma Infections / Q000175:diagnosis / Q000276:immunology; D012621:Seasons