Shigella strains are important agents of bacillary dysentery, and in recent years Shigella
sonnei has emerged as the leading cause of shigellosis in industrialized and rapidly
developing countries. More recently, several S. sonnei and Shigella flexneri strains
producing Shiga toxin (Stx) have been reported from sporadic cases and from an outbreak
in America. In the present study we aimed to shed light on the evolution of a recently
identified Shiga toxin producing S. sonnei (STSS) isolated in Europe. Here we report the first …