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Updated: Aug 14, 2026

Characterization of Inflammatory Responses During Intranasal Colonization with Streptococcus pneumoniae
Published on: January 17, 2014
[Resistant Streptococcus pneumoniae]
M Martínez Hornos1, M Fernández López, E Becerril Carral
1Sección de Infectología Pediátrica y Departamento de Microbiología del H.U. Virgen del Rocío, Avda. Manuel Siurot s/n, 41013 Sevilla.
Insights
Streptococcus pneumoniae resistance is rising in children, with increased cefotaxime resistance linked to penicillin resistance. Vancomycin remains effective, but other antibiotics show significant resistance.
Area of Science:
- Microbiology
- Infectious Diseases
- Pediatrics
Context:
- Streptococcus pneumoniae is a leading cause of pediatric infections.
- Recent years have seen a concerning increase in antibiotic resistance.
- Third-generation cephalosporins are increasingly ineffective.
Purpose:
- To review Streptococcus pneumoniae strains from pediatric patients.
- To analyze the incidence of resistance to cefotaxime and penicillin.
- To assess the resistance patterns of penicillin-resistant strains to other antibiotics.
Summary:
- A rise in cefotaxime resistance was observed in pediatric Streptococcus pneumoniae isolates.
- This cefotaxime resistance was significantly correlated with penicillin resistance.
- Penicillin-resistant strains showed high resistance to erythromycin, chloramphenicol, and cotrimoxazole.
- Vancomycin demonstrated 100% susceptibility in these resistant strains.
Impact:
- Highlights the growing threat of multidrug-resistant Streptococcus pneumoniae in children.
- Informs clinical decisions regarding antibiotic selection for pediatric infections.
- Underscores the need for continued surveillance and development of new antimicrobial agents.
Abstract:
Streptococcus pneumoniae is a common pathogen in children that in recent years has shown a progressive rise in resistance to the usual antibiotics and also to the new third generation cephalosporins. We report a review of Streptococcus pneumoniae strains isolated at our hospital from pediatrics patients in whom we observed an increased incidence of resistance to cefotaxime significantly related with the rise in resistance to penicillin. The resistance of penicillin-resistant strains to various antibiotics was analyzed and the following results were obtained: cefotaxime, 0% susceptible, 83% intermediate and 17% resistant; erythromycin, 16,7% susceptible, 8,3& intermediate and 75% resistant; vancomycin, 100% susceptible; chloramfenicol, 16,7% susceptible and 83,3% resistant; and cotrimoxazole, 100% resistant.
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