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Table 2 Antimicrobial resistance pattern of Helicobacter pylori isolates of tested bottled mineral water samples

From: Helicobacter pylori in bottled mineral water: genotyping and antimicrobial resistance properties

Brands (No. positive) Pattern of antibiotic resistance (%)
AM10* Met5 ER5 CLR2 AMX 10 Lev5 Cef30 TRP25 FZL1 Mox5 Tin4 CIP5
A (1) 1 (100)a 1 (100)a 1 (100)a 1 (100)a 1 (100)a - - - - - - -
B (1) 1 (100)a 1 (100)a 1 (100)a 1 (100)a 1 (100)a 1 (100)a - 1 (100)a - - 1 (100)a 1 (100)a
C (4) 2 (50)a 2 (50)a 2 (50)a 2 (50)a 2 (50)a 2 (50)a 1 (25)b 3 (75)a 1 (25)b 1 (25)b 2 (50)a 2 (50)a
D (2) 2 (100)a 1 (50)a 1 (50)a 1 (50)a 1 (50)a 1 (50)a 1 (50)b 1 (50)a 1 (50)b 1 (50)b 1 (50)a 1 (50)a
Total (8) 6 (75)a, * 5 (62.5)a 5 (62.5)a 5 (62.5)a 5 (62.5)a 4 (50)a 2 (25)b 5 (62.5)a 2 (25)b 2 (25)b 4 (50)a 4 (50)a
  1. *AM10: ampicillin (10 μg), Met5: metronidazole (5 μg), ER5: erythromycin (5 μg), CLR2: clarithromycin (2 μg), AMX10: amoxicillin (10 μg), Lev5: levofloxacin (5 μg), Cef30: cefsulodin (30 μg), TRP25: trimethoprim (25 μg), FZL1: furazolidone (1 μg), Mox5: moxifloxacin (5 μg), Tin: tinidazole (prepared from pure powders, Sigma, 5 μg) and CIP5: ciprofloxacin (5 μg)
  2. a, bDissimilar letters in each row shows significant differences about P <0.05