Coronavirus maps

A fast-moving virus originating in China and known as the "new coronavirus" has infected tens of thousands of Chinese citizens and spread to more than 30 countries.

The respiratory infection which causes pneumonia-like symptoms has claimed nearly 3,000 lives so far and has been declared a global emergency by the World Health Organization (WHO).

South Korea has seen the largest number of cases outside China, while Italy has had the highest number in Europe.

These key maps and graphics will help you understand what is going on.

1. More than 30 countries have cases

While China is the epicentre of the outbreak, cases have started to occur in other countries, often being traced back to people who had travelled from China.