The new strain of coronavirus spreading across China first emerged in Wuhan, Hubei province. The city of 11 million is now under effective lockdown.
Officially known as '2019-nCoV', the newly identified coronavirus can cause pneumonia, but it is still too early to know just how dangerous it is and how easily it spreads.
Tap or hover over each region on the map above to see the numbers of people affected in different regions of China.
Follow the latest updates from The National here.
