A coronavirus has been identified which originated in China and is now spreading to other countries. This virus causes pneumonia which can be fatal. Here is a link to an article on the New York Times website which is being updated by the hour as additional information becomes available...

https://www.nytimes.com/2020/01/21/world/asia/china-coronavirus-wuhan.html

... these developments, coupled with the intense Flu season we're already experiencing in the United States, should spur everyone to review their preparations and take whatever steps you feel necessary.