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The Pneumonia Etiology Research for Child Health (PERCH) study evaluated the etiology of severe and very severe pneumonia in children hospitalized in 7 African and Asian countries. Here, we summarize the highlights of in-depth site-specific etiology analyses published separately in this issue, including how etiology varies by age, mortality status, malnutrition, severity, HIV status, and more. These site-specific results impart important lessons that can inform disease control policy implications.

Original publication




Journal article


The Pediatric infectious disease journal

Publication Date





S1 - S6


From the Department of International Health, International Vaccine Access Center, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland.


Humans, AIDS-Related Opportunistic Infections, Pneumonia, Malnutrition, Hospitalization, Risk Factors, Age Factors, Developing Countries, Health Policy, Child, Preschool, Infant, Africa, Asia, Patient Acuity, Child Health