Skip to main content

Table 1 Antimicrobial susceptibility testing results for S. derby isolates from different sources

From: Characterization of ciprofloxacin-resistant and ESBL-producing Salmonella enteric serotype Derby in Eastern China

Antimicrobial agent

No. of resistant isolates

P

Environmental source (N = 22)

Patient source (N = 30)

Total (N = 52)

Ampicillin

9 (41%)

19 (63%)

28 (54%)

0.37

Cefotaxime

1 (5%)

3 (10%)

4 (8%)

ESBL

1 (5%)

3 (10%)

4 (8%)

Nalidixic acid

16 (73%)

28 (93%)

44 (85%)

0.55

Ciprofloxacin

4 (18%)

6 (20%)

10 (19%)

Gentamicin

3 (14%)

3 (10%)

6 (11%)

Chloramphenicol

10 (45%)

19 (63%)

29 (56%)

0.43

Tetracycline

15 (68%)

20 (67%)

35 (67%)

0.96

Trimethoprim-sulfamethoxazole

18 (82%)

22 (73%)

40 (77%)

0.80

MDR*

7 (32%)

18 (60%)

25 (48%)

0.22

Total events

84 (38%)

141 (47%)

225 (44%)

0.04

  1. *Abbreviation: MDR multidrug resistant, refers to concurrent resistance to ampicillin, chloramphenicol, and trimethoprim-sulfamethoxazole