The coronavirus outbreak has been labelled a pandemic by the World Health Organization (WHO).
WHO chief Dr Tedros Adhanom Ghebreyesus said the number of cases outside China had increased 13-fold over the past two weeks.
He said he was “deeply concerned” by “alarming levels of inaction” over the virus.
A pandemic is a disease that is spreading in multiple countries around the world at the same time.
However Dr Tedros said that calling the outbreak a pandemic did not mean the WHO was changing its advice about what countries should do.
He called on governments to change the course of the outbreak by taking “urgent and aggressive action”.