Coronavirus – a fast-moving infection originating in China – has spread to more than 110 countries and claimed more than 4,600 lives.
While the vast majority of cases are in China, the virus is now spreading faster outside the country than within. Italy, so far, has the highest number of confirmed infections outside China.
This series of maps and charts that will help you understand what is going on.
1. The virus outbreak is now a pandemic
A rise in the number of daily confirmed cases of the new coronavirus internationally has led the World Health Organization (WHO) to declare its spread a global pandemic.
This is when an infectious disease is passing easily from person to person in many parts of the world at the same time.
WHO chief Dr Tedros Adhanom Ghebreyesus said that outside China, the number of cases of the virus, which causes pneumonia-like symptoms, increased 13-fold in two weeks.
More than 80,900 people in China have been infected with coronavirus since its emergence in the city of Wuhan, Hubei province, in December.
But there are now also 43,500 cases outside the country, according to WHO figures.
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US President Donald Trump on Thursday announced travel restrictions on 26 European countries.
The measures apply to travellers from countries which are members of the Schengen border-free travel area. This is in addition to China and Iran.
A number of international conferences and sporting events have also been cancelled, including Six Nations rugby matches.
2. Italy has the most recorded cases outside China
Italian authorities have imposed stringent restrictions on citizens, closing nearly all shops, bars, hairdressers, restaurants and cafes until 25 March in a bid to halt the virus’s spread.
It has more than 12,400 confirmed cases and a death toll of about 830.
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The country’s schools, gyms, museums, nightclubs and other venues have already been shut and people have been ordered to stay home and seek permission for essential travel.
As of 12 March, Italy had the most cases outside of China, overtaking South Korea and Iran.