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Table 3 Antimicrobial resistance by Shigella serotypes in Guatemala, 2007–2012

From: Burden of laboratory-confirmed shigellosis infections in Guatemala 2007-2012: results from a population-based surveillance system

Antimicrobial class

Antimicrobial

All Cases

N (%)a

N = 254

S. soneii

N (%)a

N = 88

S. flexneri

N (%)a

N = 152

S. boydii

N (%)a

N = 12

S. dysenteriae

N (%)a

N = 2

Aminoglycoside

Gentamicin

3 (1.0)

1 (1.0)

1 (1.0)

1 (8.0)

0 (0.0)

Kanamycin

4 (2.0)

2 (3.0)

2 (2.0)

0 (0.0)

0 (0.0)

Streptomycin

212 (85.0)

87 (99.0)

112 (76.0)

11 (92.0)

2 (100.0)

Beta-lactams

Ampicillin

141 (61.0)

45 (58.0)

87 (61.0)

8 (67.0)

1 (50.0)

Amoxicillin

117 (47.0)

36 (41.0)

72 (49.0)

8 (67.0)

1 (50.0)

Ceftriaxone

3 (2.0)

1 (2.0)

1 (1.0)

0 (0.0)

1 (50.0)

Quinolones

Ciprofloxacin

0 (0.0)

0 (0.0)

0 (0.0)

0 (0.0)

0 (0.0)

Nalidixic acid

1 (0.4)

0 (0.0)

1 (1.0)

0 (0.0)

0 (0.0)

Phenicol

Chloramphenicol

37 (15.0)

2 (2.0)

35 (23.0)

0 (0.0)

0 (0.0)

Sulfonamide

Trimethoprim sulfamethoxazole

210 (83.0)

82 (93.0)

118 (78.0)

9 (75.0)

1 (50.0)

Tetracycline

Tetracycline

238 (96.0)

83 (94.0)

143 (97.0)

10 (91.0)

2 (100.0)

Level of resistance

 

All Cases

N (%)a

N = 254

S. soneii

N (%)a

N = 88

S. flexneri

N (%)a

N = 152

S. boydii

N (%)a

N = 12

S. dysenteriae

N (%)a

N = 2

No resistance

0 (0.0)

0 (0.0)

0 (0.0)

0 (0.0)

0 (0.0)

Resistance to one antimicrobial class

15 (5.9)

3 (3.4)

12 (7.9)

0 (0.0)

0 (0.0)

Resistance to two antimicrobial classes

37 (14.6)

2 (2.3)

31 (20.4)

3 (25.0)

1 (50.0)

Resistance to three antimicrobial classes

66 (26.0)

39 (44.3)

24 (15.8)

3 (25.0)

0 (0.0)

Resistance to four antimicrobial classes

121 (47.6)

42 (47.7)

73 (48.0)

6 (50.0)

0 (0.0)

Resistance to five antimicrobial classes

15 (5.9)

2 (2.3)

12 (7.9)

0 (0.0)

1 (50.0)

Multidrug-resistanceb

120 (51.3)

44 (56.4)

68 (47.9)

7 (58.3)

1 (50.0)

  1. aProportions based on non-missing data
  2. bResistance to ampicillin and trimethoprim-sulfamethoxazole (AT/S)