There is an outbreak of pneumonia in Wuhan, China caused by a new type of coronavirus. No cases have been reported in the US, but travelers to Wuhan should exercise caution. If you have been in Wuhan within the past 2 weeks and develop a fever, cough, or have difficulty breathing, seek medical care right away. Tell the medical providers your symptoms and that you were in Wuhan.
More information from the CDC: https://wwwnc.cdc.gov/travel/notices/watch/novel-coronavirus-china
Information for Healthcare Professionals: https://www.cdc.gov/coronavirus/2019-nCoV/guidance-hcp.html
To sign up for Health Alert Notifications from the CDC: https://emergency.cdc.gov/han/updates.asp