Clostridioides difficile (C. diff) is a stealthy threat. It infects more than 500,000 people in the United States each year, and kills up to 30,000. It is a leading cause of health-care-associated ...

The bacterium Clostridioides difficile is named “difficult” for a reason. Originally, it was hard to grow in the lab, and, now, it’s the source of gut infections that are tough to treat. About half a ...