The Candida auris infection was first identified in Japan in 2009, and since 2013 there have been 13 cases in the U.S. Candida is a genus of yeasts and is the most common cause of fungal infection, the most recognizable strain being Candida albicans. The CDC is concerned about the spread of Candida auris because it is resistant to most antifungal drugs used to treat other Candida strain infections. It is also difficult to identify using standard lab methods, and has shown to cause outbreaks in healthcare settings.
Link to CDC Q&A, MMWR Morb Mortal Wkly Rep and Medscape Medical News article (access free with site registration) (11/2016)