Skip to main content

Advertisement

Table 5 Correlation between phenotypic and genotypic resistance pattern of the DEC isolates (n = 67)

From: A study of virulence and antimicrobial resistance pattern in diarrhoeagenic Escherichia coli isolated from diarrhoeal stool specimens from children and adults in a tertiary hospital, Puducherry, India

Antimicrobial class Antimicrobials AMR genes detected Pattern 1 Pattern 2 Pattern 3 Pattern 4
Quinolones Ciprofloxacin and levofloxacin qnrB, qnrS, aac(6′)-Ib 13 (19.4%) 20 (29.8%) 9 (13.4%) 25 (37.3%)
Aminoglycosides Amikacin and gentamicin aac3, aadB 42 (62.6%) 9 (13.4%) 9 (13.4%) 7 (10.29%)
Tetracycline Tetracycline tetA, tetB. tetD 25 (37.3%) 13 (19.4%) 18 (23.8%) 11 (16.4%)
Phenicols Chloramphenicol cat1 44 (65.6%) 6 (8.9%) 12 (17.9) 5 (7.4%)
β-lactam Ceftazidime, ceftriaxone, and cefoperazone-sulbactam blaCTX, blaTEM, blaSHV 15 (22.5%) 16 (23.8%) 13 (19.4%) 23 (34.3%)
Trimethoprim and sulfonamide Co-trimoxazole sul1, sulII, sulIII, dhfr1 9 (13.4%) 1 (1.4%) 28 (41.7%) 29 (43.2%)
  1. Pattern 1: No resistance gene(s) detected and phenotypically sensitive
  2. Pattern 2: No resistance gene(s) detected but phenotypically resistant
  3. Pattern 3: Resistance gene(s) detected but phenotypically sensitive
  4. Pattern 4: Resistance gene(s) detected and phenotypically resistant