Journal article
The etiology of pneumonia in HIV-uninfected children in Kilifi, Kenya: findings from the pneumonia etiology research for child health (PERCH) study
- Abstract:
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Background:
In the 1980s, Streptococcus pneumoniae and Haemophilus influenzae were identified as the principal causes of severe pneumonia in children. We investigated the etiology of severe childhood pneumonia in Kenya after introduction of conjugate vaccines against H. influenzae type b, in 2001, and S. pneumoniae, in 2011.
Methods:
We conducted a case–control study between August 2011 and November 2013 among residents of the Kilifi Health and Demographic Surveillance System 28 days to 59 months of age. Cases were hospitalized at Kilifi County Hospital with severe or very severe pneumonia according to the 2005 World Health Organization definition. Controls were randomly selected from the community and frequency matched to cases on age and season. We tested nasal and oropharyngeal samples, sputum, pleural fluid, and blood specimens and used the Pneumonia Etiology Research for Child Health Integrated Analysis, combining latent class analysis and Bayesian methods, to attribute etiology.
Results:
We enrolled 630 and 863 HIV-uninfected cases and controls, respectively. Among the cases, 282 (44%) had abnormal chest radiographs (CXR positive), 33 (5%) died in hospital, and 177 (28%) had diagnoses other than pneumonia at discharge. Among CXR-positive pneumonia cases, viruses and bacteria accounted for 77% (95% CrI: 67%–85%) and 16% (95% CrI: 10%–26%) of pneumonia attribution, respectively. Respiratory syncytial virus, S. pneumoniae and H. influenza, accounted for 37% (95% CrI: 31%–44%), 5% (95% CrI: 3%–9%), and 6% (95% CrI: 2%–11%), respectively.
Conclusions:
Respiratory syncytial virus was the main cause of CXR-positive pneumonia. The small contribution of H. influenzae type b and pneumococcus to pneumonia may reflect the impact of vaccine introductions in this population.
- Publication status:
- Published
- Peer review status:
- Peer reviewed
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(Preview, Version of record, pdf, 904.6KB, Terms of use)
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- Publisher copy:
- 10.1097/inf.0000000000002653
Authors
- Publisher:
- Lippincott, Williams and Wilkins
- Journal:
- The Pediatric Infectious Disease Journal More from this journal
- Volume:
- 40
- Issue:
- 9S
- Pages:
- S29-S39
- Publication date:
- 2021-09-01
- Acceptance date:
- 2020-01-13
- DOI:
- EISSN:
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1532-0987
- ISSN:
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0891-3668
- Pmid:
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34448742
- Language:
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English
- Keywords:
- Pubs id:
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1197702
- Local pid:
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pubs:1197702
- Deposit date:
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2022-07-20
- ARK identifier:
Terms of use
- Copyright holder:
- Awori et al.
- Copyright date:
- 2021
- Rights statement:
- ©2021 The Author(s). Published by Wolters Kluwer Health, Inc. This is an open access article distributed under the Creative Commons Attribu- tion License 4.0 (CCBY), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
- Licence:
- CC Attribution (CC BY)
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