Have you bought face masks yet?

Today:

The UK government has declared coronavirus a "serious and imminent threat" to public health.

and

WHO chief Tedros Adhanom Ghebreyesus said there had been “some concerning instances” of transmission from people who had not been to China.

“The detection of a small number of cases may indicate more widespread transmission in other countries; in short, we may only be seeing the tip of the iceberg,”