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Brief report
Streptococcus pneumoniae serotypes with meningeal tropism in cases of invasive pneumococcal disease. Community of Madrid, 2007–2018
Serotipos de Streptococcus pneumoniae con tropismo meníngeo en casos de enfermedad neumocócica invasora. Comunidad de Madrid, 2007–2018
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Juan Carlos Sanza,b,
Corresponding author
juan.sanz@salud.madrid.org

Corresponding author.
, Sara de Miguelc, María Ordobásc, Luis García Comasc
a Unidad de Microbiología Clínica, Laboratorio Regional de Salud Pública, Dirección General de Salud Pública, Comunidad de Madrid, Centro de Especialidades Médicas Vicente Soldevilla, Madrid, Spain
b CIBER de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain
c Servicio de Epidemiología, Dirección General de Salud Pública, Comunidad de Madrid, Madrid, Spain
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Received 03 October 2019. Accepted 04 November 2019
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Tables (2)
Table 1. Serotypes of Streptococcus pneumoniae most commonly isolated in CSF. Community of Madrid, 2007–2018.
Table 2. Changes over time in the main serotypes of Streptococcus pneumoniae isolated in CSF at a higher frequency than in other usually sterile samples during the periods 2007–2010, 2011–2014 and 2015–2018.
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Abstract
Introduction

To describe the distribution of Streptococcus pneumoniae serotypes isolated in cerebrospinal fluid (CSF) between 2007–2018 in the Community of Madrid (CM) and to identify those with higher meningeal tropism.

Methods

Strains isolated from invasive pneumococcal disease were sent to the Regional Laboratory of Public Health by Microbiology laboratories of public and private hospitals of the CM. The frequency of serotypes from CSF was compared with that observed in other samples.

Results

A total of 6115 strains were processed and 5% (n = 304) were isolated from CSF. Seven serotypes (11A, 19F, 23B, 10A, 24F, 23A and 35F) showed a frequency significantly higher in CSF than in other sterile samples. Serotypes 24F, 11A and 23B showed high penicillin-resistance.

Conclusion

The frequency and resistance of certain pneumococcal serotypes with high meningeal tropism could compromise the treatment of central nervous system infections.

Keywords:
Streptococcus pneumoniae
Serotypes
Cerebrospinal fluid
Resumen
Introducción

Se describe la distribución de serotipos de Streptococcus pneumoniae aislados en líquido cefaloraquídeo (LCR) entre los años 2007–2018 en la Comunidad de Madrid (CM) identificando aquellos con mayor tropismo meníngeo.

Métodos

Se estudiaron las cepas de episodios de enfermedad neumocócica invasora enviadas al Laboratorio Regional de Salud Pública por los servicios de Microbiología de hospitales públicos y privados de la CM. La frecuencia de serotipos procedentes de LCR se comparó con la observada en otras muestras.

Resultados

Se procesaron 6.115 cepas. El 5% (n = 304) se aislaron en LCR. Siete serotipos (11A, 19F, 23B, 10A, 24F, 23A y 35F) mostraron una frecuencia en LCR significativamente mayor que en otras muestras estériles. Los serotipos 24F, 11A y 23B mostraron alta resistencia a la penicilina.

Conclusión

La frecuencia y resistencia de determinados serotipos de neumococo con elevado tropismo meníngeo podría comprometer el tratamiento de las infecciones del sistema nervioso central.

Palabras clave:
Streptococcus pneumoniae
Serotipos
Líquido cefalorraquídeo

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