. 2019 May 10;19(Suppl 3):474. doi: 10.1186/s12889-019-6780-7

Table 3.

Antimicrobial resistance by Shigella serotypes in Guatemala, 2007–2012

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)
Quinolones	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-resistance^b		120 (51.3)	44 (56.4)	68 (47.9)	7 (58.3)	1 (50.0)

^aProportions based on non-missing data

^bResistance to ampicillin and trimethoprim-sulfamethoxazole (AT/S)