Pneumonia - Community-Acquired (Pediatric) Disease Summary

Last updated: 10 July 2026

Overview

Community-acquired pneumonia (CAP) in children is a previously healthy child presenting with signs and symptoms of lower respiratory tract infection (LRTI) acquired outside of the hospital or health care facility, as stated in the Introduction section.

There are approximately 120 million cases of pneumonia reported worldwide each year. A detailed discussion about the prevalence of pneumonia in children is in the Epidemiology section.

The most common bacterial cause of childhood pneumonia is Streptococcus pneumoniae.  Discussions on S pneumoniae and other pathogens are in the Etiology section.

The Pathophysiology section states that pneumonia occurs when pathogens invade the lower respiratory tract through inhalation, aspiration, direct invasion of the respiratory epithelium, or hematogenous spread. The developmental process of pneumonia is in this section.

Conditions associated with the development of childhood pneumonia are in the Risk Factors section.



Pneumonia - Community-Acquired Pediatric_Disease SummaryPneumonia - Community-Acquired Pediatric_Disease Summary

History and Physical Examination

The Clinical Presentation section describes the clinical features suggestive of childhood pneumonia.

The History and the Physical Examination sections discuss the important information that should be obtained and examinations that should be done in children suspected of having pneumonia. 

Diagnosis

The Screening section features the severity assessment in children with pneumonia.

Discussions on microbiology, tests for viral pathogens and atypical bacteria, and ancillary diagnostic tests in the evaluation of childhood pneumonia are in the Laboratory Tests and Ancillaries section.

The Imaging section discusses the importance of a chest X-ray and other imaging studies in the diagnosis of pneumonia in children.

Other conditions that should be ruled out in the diagnosis of childhood pneumonia are listed in the Differential Diagnosis section.

Management

Indications for hospital and intensive care unit (ICU) admission are enumerated in the Evaluation section.

General principles for pharmacological therapy are in the Principles of Therapy section.

The Pharmacological Therapy section discusses antibiotic therapy in detail, as well as the duration of the therapy in the management of childhood pneumonia.

The Nonpharmacological section includes supportive therapy and other preventive measures that should be done in children diagnosed with pneumonia.

Discussions on vaccination and immunotherapy for children at risk for pneumonia are in the Prevention section.

The Monitoring section identifies indications for follow-up of children with pneumonia and indications for referral to a specialist.