The relation of nasopharyngeal colonization by Streptococcus pneumoniae in comorbid adults with unfavorable outcomes in a low-middle income country.

<h4>Purpose</h4>Streptococcus pneumoniae (Spn) is the primary bacterial cause of lower respiratory tract infections (LRTI) globally, particularly impacting older adults and children. While Spn colonization in children is linked to LRTI, its prevalence, and consequences in adults with com...

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Main Authors: Juan Olivella-Gomez, Julián Lozada, Cristian C Serrano-Mayorga, Lina Méndez-Castillo, Alejandro Acosta-González, André Emilio Viñán Garcés, Ingrid G Bustos, Elsa D Ibáñez-Prada, Yuli V Fuentes, Ana M Crispin, Erica Y Garcia-Garcia, Eveling Santana, Diego F Josa, Jorge Pulido Saenz, Gina Paola Rodíguez-Castaño, Jorge Alberto Rodríguez Orjuela, Diego Jaimes, Hervé Tettelin, Carlos J Orihuela, Luis Felipe Reyes
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2025-01-01
Series:PLoS ONE
Online Access:https://doi.org/10.1371/journal.pone.0318320
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author Juan Olivella-Gomez
Julián Lozada
Cristian C Serrano-Mayorga
Lina Méndez-Castillo
Alejandro Acosta-González
André Emilio Viñán Garcés
Ingrid G Bustos
Elsa D Ibáñez-Prada
Yuli V Fuentes
Ana M Crispin
Erica Y Garcia-Garcia
Eveling Santana
Diego F Josa
Jorge Pulido Saenz
Gina Paola Rodíguez-Castaño
Jorge Alberto Rodríguez Orjuela
Diego Jaimes
Hervé Tettelin
Carlos J Orihuela
Luis Felipe Reyes
author_facet Juan Olivella-Gomez
Julián Lozada
Cristian C Serrano-Mayorga
Lina Méndez-Castillo
Alejandro Acosta-González
André Emilio Viñán Garcés
Ingrid G Bustos
Elsa D Ibáñez-Prada
Yuli V Fuentes
Ana M Crispin
Erica Y Garcia-Garcia
Eveling Santana
Diego F Josa
Jorge Pulido Saenz
Gina Paola Rodíguez-Castaño
Jorge Alberto Rodríguez Orjuela
Diego Jaimes
Hervé Tettelin
Carlos J Orihuela
Luis Felipe Reyes
author_sort Juan Olivella-Gomez
collection DOAJ
description <h4>Purpose</h4>Streptococcus pneumoniae (Spn) is the primary bacterial cause of lower respiratory tract infections (LRTI) globally, particularly impacting older adults and children. While Spn colonization in children is linked to LRTI, its prevalence, and consequences in adults with comorbidities remain uncertain. This study aims to provide novel data in that regard.<h4>Methods</h4>This prospective study of outpatient adults with chronic diseases was conducted in Colombia. Data on demographics, vaccination, and clinical history was collected in a RedCap database. Nasopharyngeal aspirate samples were examined for Spn colonization using traditional cultures and quantitative-real time polymerase chain reaction (q-rtPCR). Patients were followed for 18 months, with colonization prevalence calculated and factors influencing colonization and its impact on clinical outcomes analyzed through logistic regressions.<h4>Results</h4>810 patients were enrolled, with 10.1% (82/810) identified as colonized. The mean (SD) age was 62 years (±15), and 48.6% (394/810) were female. Major comorbidities included hypertension (52.2% [423/810]), cardiac conditions (31.1% [252/810]), and chronic kidney disease (17.4% [141/810]). Among all, 31.6% (256/810) received the influenza vaccine in the previous year, and 10.7% (87/810) received anti-Spn vaccines. Chronic kidney disease (OR 95% CI; 2.48 [1.01-6.15], p = 0.04) and chronic cardiac diseases (OR 95% CI; 1.62 [0.99-2.66], p = 0.05) were independently associated with Spn colonization. However, colonization was not associated with the development of LRTI (OR 95%CI; 0.64 [0.14-2.79], p = 0.55) or unfavorable outcomes (OR 95% CI;1.17 [0.14-2.79], p = 0.54) during follow-up.<h4>Conclusions</h4>Chronic kidney and cardiac diseases are independently associated with Spn colonization. However, Spn colonization was not associated with LRTI/unfavorable outcomes in adult patients with chronic comorbidities in our cohort.
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spelling doaj-art-ec9ee4990f1a497bb7efe3270519fa442025-08-20T02:56:05ZengPublic Library of Science (PLoS)PLoS ONE1932-62032025-01-01202e031832010.1371/journal.pone.0318320The relation of nasopharyngeal colonization by Streptococcus pneumoniae in comorbid adults with unfavorable outcomes in a low-middle income country.Juan Olivella-GomezJulián LozadaCristian C Serrano-MayorgaLina Méndez-CastilloAlejandro Acosta-GonzálezAndré Emilio Viñán GarcésIngrid G BustosElsa D Ibáñez-PradaYuli V FuentesAna M CrispinErica Y Garcia-GarciaEveling SantanaDiego F JosaJorge Pulido SaenzGina Paola Rodíguez-CastañoJorge Alberto Rodríguez OrjuelaDiego JaimesHervé TettelinCarlos J OrihuelaLuis Felipe Reyes<h4>Purpose</h4>Streptococcus pneumoniae (Spn) is the primary bacterial cause of lower respiratory tract infections (LRTI) globally, particularly impacting older adults and children. While Spn colonization in children is linked to LRTI, its prevalence, and consequences in adults with comorbidities remain uncertain. This study aims to provide novel data in that regard.<h4>Methods</h4>This prospective study of outpatient adults with chronic diseases was conducted in Colombia. Data on demographics, vaccination, and clinical history was collected in a RedCap database. Nasopharyngeal aspirate samples were examined for Spn colonization using traditional cultures and quantitative-real time polymerase chain reaction (q-rtPCR). Patients were followed for 18 months, with colonization prevalence calculated and factors influencing colonization and its impact on clinical outcomes analyzed through logistic regressions.<h4>Results</h4>810 patients were enrolled, with 10.1% (82/810) identified as colonized. The mean (SD) age was 62 years (±15), and 48.6% (394/810) were female. Major comorbidities included hypertension (52.2% [423/810]), cardiac conditions (31.1% [252/810]), and chronic kidney disease (17.4% [141/810]). Among all, 31.6% (256/810) received the influenza vaccine in the previous year, and 10.7% (87/810) received anti-Spn vaccines. Chronic kidney disease (OR 95% CI; 2.48 [1.01-6.15], p = 0.04) and chronic cardiac diseases (OR 95% CI; 1.62 [0.99-2.66], p = 0.05) were independently associated with Spn colonization. However, colonization was not associated with the development of LRTI (OR 95%CI; 0.64 [0.14-2.79], p = 0.55) or unfavorable outcomes (OR 95% CI;1.17 [0.14-2.79], p = 0.54) during follow-up.<h4>Conclusions</h4>Chronic kidney and cardiac diseases are independently associated with Spn colonization. However, Spn colonization was not associated with LRTI/unfavorable outcomes in adult patients with chronic comorbidities in our cohort.https://doi.org/10.1371/journal.pone.0318320
spellingShingle Juan Olivella-Gomez
Julián Lozada
Cristian C Serrano-Mayorga
Lina Méndez-Castillo
Alejandro Acosta-González
André Emilio Viñán Garcés
Ingrid G Bustos
Elsa D Ibáñez-Prada
Yuli V Fuentes
Ana M Crispin
Erica Y Garcia-Garcia
Eveling Santana
Diego F Josa
Jorge Pulido Saenz
Gina Paola Rodíguez-Castaño
Jorge Alberto Rodríguez Orjuela
Diego Jaimes
Hervé Tettelin
Carlos J Orihuela
Luis Felipe Reyes
The relation of nasopharyngeal colonization by Streptococcus pneumoniae in comorbid adults with unfavorable outcomes in a low-middle income country.
PLoS ONE
title The relation of nasopharyngeal colonization by Streptococcus pneumoniae in comorbid adults with unfavorable outcomes in a low-middle income country.
title_full The relation of nasopharyngeal colonization by Streptococcus pneumoniae in comorbid adults with unfavorable outcomes in a low-middle income country.
title_fullStr The relation of nasopharyngeal colonization by Streptococcus pneumoniae in comorbid adults with unfavorable outcomes in a low-middle income country.
title_full_unstemmed The relation of nasopharyngeal colonization by Streptococcus pneumoniae in comorbid adults with unfavorable outcomes in a low-middle income country.
title_short The relation of nasopharyngeal colonization by Streptococcus pneumoniae in comorbid adults with unfavorable outcomes in a low-middle income country.
title_sort relation of nasopharyngeal colonization by streptococcus pneumoniae in comorbid adults with unfavorable outcomes in a low middle income country
url https://doi.org/10.1371/journal.pone.0318320
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