Emergence of Shigella sonnei resistant to kanamycin and to nalidixic acid, without exposure to these drugs.

Child Drug Resistance, Microbial Dysentery, Bacillary/microbiology Female Gastroenteritis/microbiology Genetics, Microbial Humans Infant Kanamycin/pharmacology Male Mutation Nalidixic Acid/pharmacology Shigella sonnei/drug effects,isolation & purification Species Specificity

Nalidixic Acid Kanamycin