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Table 6 Multiple antimicrobial resistance gene patterns of E. coli isolates

From: Molecular determination of antimicrobial resistance in Escherichia coli isolated from raw meat in Addis Ababa and Bishoftu, Ethiopia

Number of AMR gene (%)

Resistance gene patterns

Number of isolates (%)

No resistance

7 (11.1)

 One (n = 11; 17.5%)

bla CMY

6 (9.5)

tet(A)

3 (4.7)

sul1

1 (1.6)

catA1

1 (1.6)

 Two (n = 20; 31.8%)

aac(3)-IV * bla CMY

1 (1.6)

aac(3)-IV * tet(A)

1 (1.6)

cmlA * tet(A)

1 (1.6)

bla CMY * tet(A)

7 (11.1)

sul1* bla CMY

5 (7.9)

sul1* catA1

1 (1.6)

sul1* tet(A)

4 (6.3)

 Three (n = 15; 23.8%)

sul1* bla CMY * tet(A)

10 (15.9)

sul1* cmlA * tet(A)

2 (3.2)

aac(3)-IV * sul1* tet(A)

1 (1.6)

bla CMY * cmlA * tet(A)

1 (1.6)

bla CMY * catA1* tet(A)

1 (1.6)

 Four (n = 6; 9.5%)

sul1* bla CMY * catA1* tet(A)

2 (3.2)

aac(3)-IV * sul1* bla CMY * tet(A)

2 (3.2)

sul1* bla CMY * cmlA * tet(A)

1 (1.6)

sul1 * bla SHV * bla CMY * tet(A)

1 (1.6)

 Five (n = 4; 6.3%)

aac(3)-IV * sul1* bla CMY * cmlA * tet(A)

2 (3.2)

aac(3)-IV * sul1* bla SHV *bla CMY* tet(A)

2 (3.2)

  1. aadA1 streptomycin, aac(3)-IV gentamicin, sul1 sulfonamide, bla SHV and bla CMY beta lactams, ere(A) erythromycin, catA1 and cmlA chloramphenicol, tet(A) tetracycline