Bibliographic citations
Gonzales, B., (2023). Asociación entre la vacuna antineumocócica 13-valente y la prevalencia de co-colonización nasofaríngea de Streptococcus pneumoniae y Staphylococcus aureus en niños sanos menores de dos años en Lima, Perú [Universidad Peruana Cayetano Heredia]. https://hdl.handle.net/20.500.12866/15200
Gonzales, B., Asociación entre la vacuna antineumocócica 13-valente y la prevalencia de co-colonización nasofaríngea de Streptococcus pneumoniae y Staphylococcus aureus en niños sanos menores de dos años en Lima, Perú []. PE: Universidad Peruana Cayetano Heredia; 2023. https://hdl.handle.net/20.500.12866/15200
@mastersthesis{renati/911203,
title = "Asociación entre la vacuna antineumocócica 13-valente y la prevalencia de co-colonización nasofaríngea de Streptococcus pneumoniae y Staphylococcus aureus en niños sanos menores de dos años en Lima, Perú",
author = "Gonzales Jaimes, Brayan Enrique",
publisher = "Universidad Peruana Cayetano Heredia",
year = "2023"
}
Introduction: The pneumococcal conjugate vaccines (PCV) have not only generated changes in the dynamics of serotypes of Streptococcus pneumoniae (Spa), also an increase in the Sthaphylococcus aureus (Sa) frequency. Considering that these bacteria commonly colonize the nasopharynx in young children, PCV could potentially impact the co-existence of these pathogens. The aim of this study was to determine the association between the PCV13 and the colonization by Spn, Sa and co-colonization (Spa + Sa) in healthy children under two years old from five national hospitals. in Lima, Peru between 2018 and 2019. Methods: A multicenter cross-sectional study, that developed a secondary data analysis using demographic, clinical data from 894 children under two years old. The analysis of associated factors was carried out using parametric and non-parametric tests, and multinomial regression to estimated PR, statistical significance level was set at p<0.05. Results: 17.4% were only Spa carriers, 16.8% were only Sa carriers, and 2.9% were cocolonized Spa + Sa. 89.4% were immunized with at least one dose of PCV13. In only Spn carriers, they were associated with mild respiratory illness (RPa: 1.95; p=0.001), living with other children (RPa: 1.99; p=0.001), prior hospitalization (RPa: 0.29; p=0.048) and have received at least one dose of PCV13 (RPa: 3.00; p=0.022). In only Sa carriers, they were associated with completing exclusive breastfeeding (RPa: 0.59; p=0.028) and have received at least one dose of PCV13 (RPa: 0.48; p=0.017). Additionally, co-colonization was not associated with PCV13 immunization (RPa: 1,71; p=0.521) and male children were associated with co-colonization (RPa: 2.50; p=0.049). Conclusion: Immunization with PCV13 was positively associated with colonization by Spn, negatively with colonization by Sa and not associated with co-colonization by both pathogens.
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