Resistance pattern of Helicobacter pylori strains to clarithromycin, metronidazole, and amoxicillin in Isfahan, Iran.

The resistance rate to clarithromycin in this study was 15.3% and is comparable with the other studies from Aslani et al ., (14%), Siavoshi et al ., (14.5%), Mohammadi et al ., (16.7%), and Mirzaei et al ., (14.6%).[ 17 18 19 20 ] However, the resistance rate to clarithromycin in our study was higher than those reported by Sirous et al ., (0%), Fallahi et al ., (4.16%), and Khashei et al ., (6.25%);[ 2 13 21 ] and lower than those reported by Falsafi et al ., (21%), Haghi Tomatari et al ., (23%), and Kargar et al ., (22.6%).[ 9 14 22 ] It showed an increasing trend in Isfahan (15.3%).

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