If you're tracking emerging infectious agents in the United States, it's time to add a new one to the list.
The Centers for Disease Control and Prevention has identified seven cases of a fungal infection first seen in Japan in 2009. The culprit is called Candida auris .
The fungus has appeared among hospitalized patients with cancer-damaged immune systems or other serious conditions.
Four of the seven patients died. Because they were all quite ill to begin with, it's not clear that the fungus caused their deaths.