According to the World Health Organization and national authorities, there have been more than 50 confirmed cases outside China - but no deaths.

Five: USA, Australia, Singapore, Taiwan

One: Nepal, Canada, Cambodia, Sri Lanka, Germany

The latest case to be confirmed is in the German state of Bavaria, only the fourth so far in Europe.

It involves a man who contracted the virus at a training event from a visiting Chinese colleague who reportedly did not show symptoms until she returned to China days later.

In Japan, authorities said a bus driver caught the virus after transporting tour groups from Wuhan earlier this month.

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