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. 2014 Autumn;7(4):218–223.

Table 2.

Antibiotic resistance patterns of the Shigella isolates according to the Shigella species

Antibiotic S. flexneri
n= 19 (%)
S. sonnei
n= 11(%)
n= 4 (%) S. dysenteriae Total
n= 36(%)
Trimethoprim-sulphamethoxazole (1.25/23.75 μg) 17(89.4) 9(81.8) 2(50) 1(50) 29(80.5)
Ampicillin(10µg) 14(73.6) 7(63.6) 2(50) 0 23(63.8)
Tetracycline(30µg) 15(78.9) 5(45.4) 0 1(50) 21(58.3)
Nalidixic-acid (30mg) 4(21) 6(54.4) 0 0 10(27.7)
Ceftriaxone (30µg) 0 0 0 0 0
Ciprofloxacin(5µg) 0 0 0 0 0
Chloramphenicol (30µg) 6(31.5) 3(27.2) 2(50) 1(50) 12(33.3)
Gentamicin (10µg) 5(26.3) 7(63.6) 1(25) 0 13(36.1)
Cefixime (5µg) 4(21) 1(9) 1(25) 0 6(16.6)
MDR 14(73.6) 3(27.2) 0 0 17(47.2)

MDR: multidrug resistance