Health officials have contacted more than 200 people who attended a conference in central London after it emerged one delegate is suffering from coronavirus.
It comes as China's coronavirus outbreak has shown no sign of peaking with health authorities reporting more than 5,000 new cases on Friday.
In its latest update, China's National Health Commission said it had recorded 121 new deaths and 5,090 new coronavirus cases on the mainland on February 13, taking the accumulated total infected to 63,851 people.
It comes as 44 more passengers on the Diamond Princess cruise ship tested positive for the virus, bringing the total up to 218. This is the largest cluster of Covid-19 cases outside of China. The vessel is currently docked in Yokohoma, Japan.
