Candida auris (C. auris) is a type of fungus. It can live on surfaces and objects, and can grow on people. If it grows too much in a person, it can make them sick.
People with other severe health problems are most at risk of severe illness from a C. auris infection. A severe infection can be life threatening. Healthy people are less likely to be sick. But they can carry the fungus. This is called colonization. A person who is colonized by C. auris can spread it to others.
C. auris has been spreading widely over time. The CDC is concerned about this fungus, and is working with health officials to watch it closely. There are different types (strains). Each is resistant to some or all of the 3 types of medicines used to treat fungal infections. This makes it hard to treat.