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European Journal of Pediatrics

, Volume 165, Issue 1, pp 3–8 | Cite as

Trends in antibiotic resistance of respiratory tract pathogens in children in Geneva, Switzerland

  • Thomas Jaecklin
  • Peter Rohner
  • Véronique Jacomo
  • Kurt Schmidheiny
  • Alain Gervaix
Original Paper

Abstract

Bacteria increasingly resistant to antibiotics are a major treatment concern of respiratory tract pathogens in children. The aim of this study was to assess the trends of resistance of Streptococcus pneumoniae, Haemophilus influenzae and Moraxella catarrhalis to several classes of antibiotics in children <16 years of age and to compare its prevalence with surrounding countries. We studied retrospectively the susceptibility of respiratory tract pathogens isolated from specimens collected from patients at the Geneva Children’s Hospital between 1989 and 2004. The susceptibility of S. pneumoniae to penicillin decreased from 98% to 58% ( P <0.001) within 16 years, mainly due to strains intermediately resistant (MICs 0.12–1.0 µg/ml). Also erythromycin-susceptible pneumococci decreased from 97% to 63% ( P <0.001). The susceptibility of H. influenzae to amoxicillin also significantly declined (87% vs. 82%, P <0.001), and the susceptibility of M. catarrhalis to this drug almost disappeared (29% vs. 5%, P <0.001). However, in 2004 these two bacteria remained 100% susceptible to amoxicillin-clavulanic acid, second and third generation cephalosporins. Invasive H. influenzae strains were significantly more resistant to ampicillin than non-invasive strains, but no susceptibility difference between invasive and non-invasive S. pneumoniae was determined. Conclusion:During the 16 years studied, the antibiotic resistance of respiratory tract pathogens steadily and significantly increased in children, especially S. pneumoniae. This situation in Geneva is similar to neighbouring France rather than to the rest of Switzerland. A permanent surveillance of microbial susceptibility to antibiotics is essential and a limitation of antibiotic prescription together with information of the judicious use may impede the actual resistance trend.

Keywords

Antibiotic resistance  Haemophilus influenzae  Moraxella catarrhalis  Streptococcus pneumoniae 

Abbreviation

MIC

minimal inhibitory concentration

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Copyright information

© Springer-Verlag 2005

Authors and Affiliations

  • Thomas Jaecklin
    • 1
  • Peter Rohner
    • 2
  • Véronique Jacomo
    • 2
  • Kurt Schmidheiny
    • 3
  • Alain Gervaix
    • 1
  1. 1.Department of PaediatricsHôpital des EnfantsGeneva 14 Switzerland
  2. 2.Central Bacteriology LaboratoryGeneva University HospitalGeneva Switzerland
  3. 3.Department of EconomicsTufts UniversityMedford USA

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