Mycoplasma pneumoniae is a common cause of atypical pneumonia in which age group?

• A. School-age children
• B. Toddlers
• C. Infants
• D. Neonates

Answer: (A)

Mycoplasma pneumoniae most commonly causes atypical pneumonia in school-age children and adolescents. In this age group, there’s a typical pattern of a gradual onset of symptoms with a dry, persistent cough and relatively mild fever, and chest imaging often shows interstitial or patchy infiltrates rather than a classic lobar consolidation. Younger children—toddlers, infants, and neonates—are more likely to have pneumonia caused by viral pathogens or other bacteria, with Mycoplasma being a less frequent cause. Because of this age distribution, school-age children are the group where Mycoplasma pneumoniae is most commonly seen as the cause of atypical pneumonia.