The Corona Virus 2019-nCoV has been spreading in Wuhan, China, for weeks. In most cases, this leads to respiratory symptoms and even to severe, sometimes fatal, pneumonia. The Chinese authorities are reporting several deaths, several hundred patients and possibly several thousand infected persons. In the meantime, the first cases are also known outside China. On the website of the Robert Koch Institute you will find these instructions for the medical care of travel returnees from the Wuhan region to clarify suspicions.