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. 2013 Feb;108(1):30–35. doi: 10.1590/S0074-02762013000100005

TABLE II. Resistance rates of Shigella strains to ampicillin and trimethoprim/sulfamethoxazole as evaluated by patient .

Antimicrobial drug Shigella sonnei
(n = 15)
n (%)
Shigella flexneri
(n = 2)
n (%)
Total
(n = 17)
n (%)
Ampicillin 2/13.3 2/100 4/23.5
Trimethoprim/sulfamethoxazole 13/86.7 1/50 14/82.4