Urinary tract infection caused by Shigella sonnei.

This report describes a case of urinary tract infection caused by Shigella sonnei in a 6-y-old girl with vesicoureteric reflux and a preceding history of gastroenteritis. The strain was resistant to ampicillin and cotrimoxazole, and treatment with cefotaxime eradicated the infection. The role of Shigellae as urinary tract pathogens is reviewed and possible sources of infection are discussed.