Five Iowa residents filed a class-action lawsuit against a South Dakota urology clinic that might have exposed patients to blood-borne infections such as hepatitis and HIV. The federal complaint was filed in Sioux Falls against Siouxland Urology Center in Dakota Dunes and its six owners. The South Dakota Department of Health put out a news release stating that a routine survey of the center identified the potential for infection during cystoscopy procedures because single-use products such as saline solution bags and tubing were used on more than one patient before being discarded.