Gassama Sow A, Aïdara-Kane A, Barraud O, Gatet M, Denis F, Ploy MC (2010) High prevalence of trimethoprim-resistance cassettes in class 1 and 2 integrons in Senegalese Shigella spp isolates. J Infect Dev Ctries 4:207–212. doi: 10.3855/jidc.583