The evolving epidemiology of <i>Clostridium difficile</i> infection in Canadian hospitals during a postepidemic period (2009–2015)

Abstract

Rates of health care-associated <i>C. difficile</i> infection have decreased across Canada. In nonepidemic settings, NAP4 has emerged as a common strain type, but NAP1, although decreasing, continues to be the predominant circulating strain and remains significantly associated with higher attributable mortality.