Limited Utility of Polymerase Chain Reaction in Induced Sputum Specimens for Determining the Causes of Childhood Pneumonia in Resource-Poor Settings: Findings From the Pneumonia Etiology Research for Child Health (PERCH) Study

Summary Among children with chest radiograph–confirmed pneumonia, polymerase chain reaction demonstrated relatively few additional pathogens in induced sputum specimens compared with nasopharyngeal/oropharyngeal specimens.

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