Deloria Knoll M
Prosperi C
Baggett HC
Brooks WA
Feikin DR
Hammitt LL
Howie SRC
Kotloff KL
Madhi SA
Murdoch DR
Scott JAG
Thea DM
O'Brien KL
Pediatr Infect Dis J. 2021;40S1-S6
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.