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Antibiotic susceptibilities of Helicobacter pylori
1Department of Microbiology, Immunology & Infectious Diseases, College of Medicine & Medical Sciences, Arabian Gulf University, PO Box 22979, Bahrain. bindayna@agu.edu.bh
Objective:
The aim of this study was to evaluate the prevalence of resistance among 83 Helicobacter pylori isolates cultured from biopsies taken during routine endoscopies in 1998-1999.
Methods:
Minimum Inhibitory Concentration of amoxicillin, tetracycline, clarithromycin and metronidazole were determined by Epsilometer test.
Results:
Forty-seven strains (57%) were resistant to metronidazole, and 27 (32.5%) were resistant to clarithromycin. Twenty of the 27 strains resistant to clarithromycin were also resistant to metronidazole. None of the strains were resistant to amoxicillin or tetracycline.
Conclusion:
A high percentage of patients from Bahrain were infected with resistant strains of Helicobacter pylori. Antibiotic resistance monitoring is very important and unified national treatment policies are needed.