The Food and Drug Administration admitted that recent superbug infections sped up its efforts to update four-year-old recommendations for improving the complex devices linked to the outbreak.

The FDA released the recommendations on Thursday that demonstrate how manufacturers can design better medical instruments that aren’t so difficult to clean. The agency told the Washington Examiner it would now review cleaning instruction data for duodenoscopes, a complex instrument that may have infected hundreds of people in California with drug-resistant superbugs.