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Table 1 The prevalence of virulence genes, virulence plasmid-associated gene, and antibiotic resistance among S. Enteritidis isolatesa

From: Prevalence, virulence factor and antimicrobial resistance analysis of Salmonella Enteritidis from poultry and egg samples in Iran

 

All S. Enteritidis isolates

(n = 63)

S. Enteritidis isolates from poultry samples

(n = 52)

S. Enteritidis isolates from egg samples

(n = 11)

Virulence genes

invA

63 (100)

52 (100)

11 (100)

pagC

47 (74.6)

43 (82.7)

4 (36.4)

cdtB

4 (6.3)

4 (7.7)

0 (0.0)

msgA

63 (100)

52 (100)

11 (100)

spaN

49 (77.7)

41 (78.8)

8 (72.7)

tolC

49 (77.7)

41 (78.8)

8 (72.7)

lpfC

48 (76.1)

40 (76.9)

8 (72.7)

Virulence plasmid-associated gene

spvC

32 (50.8)

25 (48.1)

7 (63.6)

Antibiotic resistance

 Nalidixic acid

55 (87.3)

46 (88.5)

9 (81.8)

 Trimethoprim-sulfamethoxazole

13 (20.6)

12 (23.1)

1 (9.1)

vCephalothin

12 (19.0)

9 (17.3)

3 (27.3)

 Ceftazidime

7 (11.1)

5 (9.6)

2 (18.2)

 Colistin sulphate

15 (23.8)

13 (25.0)

2 (18.2)

 Kanamycin

16 (25.4)

14 (26.9)

2 (18.2)

  1. aValues are shown as number (%)