Streptococcus pneumoniae penicillin resistance in Turkey

Gur D., Guciz B., Hascelik G., Esel D., Sumerkan B., Over U., ...More

JOURNAL OF CHEMOTHERAPY, vol.13, no.5, pp.541-545, 2001 (SCI-Expanded) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 13 Issue: 5
  • Publication Date: 2001
  • Doi Number: 10.1179/joc.2001.13.5.541
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.541-545
  • Kütahya Health Sciences University Affiliated: No


Resistance of Streptococcus pneumoniae (750) to penicillin, erythromycin, chloramphenicol and trimethoprim/sulfamethoxazole isolated in 4 Turkish hospitals between 1996 and 1999 was evaluated according to year of isolation, patients' age groups and specimen. Penicillin susceptibility was determined by E-test strips and the other antibiotics were tested by disk diffusion test following the NCCLS guidelines in each center. Overall high and intermediate resistance to penicillin was 3% and 29%, respectively. There was a significant difference (p <0.001) between the centers with regard to penicillin resistance. However, there was no significant increase in resistance by year. Penicillin resistance varied significantly among children and adults (36% versus 25%) and according to the specimen. Highest rate of penicillin resistance was observed in respiratory specimens (36%) followed by ear exudates (33.5%). In blood isolates, resistance to penicillin was 28.6%. Overall resistance to erythromycin was 8%, to chloramphenicol 5% and to trimethoprim-sulfamethoxazole 47%. Although overall penicillin resistance in these Turkish S. pneumoniae isolates is high, resistance rates vary in each center and have not increased from 1996 to 1999.