A former patient is suing a Toronto hospital that published a study describing how sinks were responsible for the spread of a drug-resistant bacteria in its intensive care unit.

Researchers at the Toronto General Hospital found the location and design of sinks in the ICU led to the spread of Pseudomonas aeruginosa in the ward. The details of their discovery were outlined in this month’s Journal of Infection Control and Hospital Epidemiology. The bacteria was found in the sinks of TGH. The outbreak between December 2004 and March 2006, left 12 dead, and sickened two dozen others.

Ronald Sherman, 69, the plaintiff, was admitted to Toronto General in November 2005, with severe pneumonia, which worsened, according to the claim, when he became infected with pseudomonas at TGH.