Invasiveness potential of pneumococcal serotypes in children after introduction of PCV13 in Blantyre, Malawi

Bibliographic Details
Title: Invasiveness potential of pneumococcal serotypes in children after introduction of PCV13 in Blantyre, Malawi
Authors: Amir Kirolos, Todd D. Swarthout, Andrew A. Mataya, Farouck Bonomali, Comfort Brown, Jacquline Msefula, Naor Bar-Zeev, Pui-Ying Iroh Tam, Maaike Alaerts, Sithembile Bilima, Robert S. Heyderman, Neil French
Source: BMC Infectious Diseases, Vol 23, Iss 1, Pp 1-7 (2023)
Publisher Information: BMC, 2023.
Publication Year: 2023
Collection: LCC:Infectious and parasitic diseases
Subject Terms: Pneumococcus, Invasive Pneumococcal Disease, Acute Respiratory Infection, Infectious and parasitic diseases, RC109-216
More Details: Abstract Introduction The introduction of PCV13 to the Malawi infant immunization schedule in 2011 has been associated with reduced disease from Streptococcus pneumoniae. Improved understanding of serotypes with high invasive potential can guide future vaccination interventions. We aimed to estimate pneumococcal serotypes associated with acute respiratory infection (ARI) and invasive pneumococcal disease (IPD) in hospitalized children in Blantyre, Malawi. Methods We analysed data from healthy children under 5 years in the community in Blantyre and children admitted to Queen Elizabeth Central Hospital with ARI between 2015 and 2018. Nasopharyngeal swabs from children were tested for S. pneumoniae and serotyped by latex agglutination if positive. We analysed culture-positive blood and cerebrospinal fluid samples from admitted children between 2012 and 2018 to identify cases of IPD after the introduction of PCV13. We calculated the age-adjusted odds ratio (OR) of carriage for S. pneumoniae vaccine serotypes (VT) comparing those with ARI to healthy children. We also calculated age-adjusted ORs comparing serotypes causing IPD to carriage in the community with OR > 1 indicating high invasive potential. Results Serotypes 5 (OR 24.73 [95% CI 7.90–78.56] p
Document Type: article
File Description: electronic resource
Language: English
ISSN: 1471-2334
Relation: https://doaj.org/toc/1471-2334
DOI: 10.1186/s12879-023-08022-4
Access URL: https://doaj.org/article/63167f6b39844ccaba2eed1a4eeaad19
Accession Number: edsdoj.63167f6b39844ccaba2eed1a4eeaad19
Database: Directory of Open Access Journals
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More Details
ISSN:14712334
DOI:10.1186/s12879-023-08022-4
Published in:BMC Infectious Diseases
Language:English