Researchers at the Centers for Disease Control and Prevention surveyed 68 ambulatory surgical centers in three states looking to see how well they complied with infection-control guidelines in five areas, including hand hygiene, injection safety, and environmental cleaning practices. In a study, they report that state inspectors noted at least one lapse at 68% of the centers and saw lapses in at least three areas at 18% of the facilities. At 28% of facilities, medications in single-dose vials were used for more than one patient. Of the 68 facilities, 39 eventually received state citations for infection control deficiencies and 20 for medication administration lapses.