A GP practice in Brighton has been temporarily closed after a staff member tested positive for the coronavirus.
Patients at the city’s County Oak medical centre have been advised to contact the NHS 111 phone service if they have concerns.
Eight people in the UK have now been infected by the coronavirus.
The Department of Health has called the virus a “serious and imminent threat” to public health, but the overall risk to the population is “moderate”.
However, the risk to individuals is low, the department said.
There have been more than 40,000 cases of the virus globally, mostly in China. The total number of deaths in China is now 908.
Coronavirus kills 97 in deadliest day so far
Coronavirus: How worried should we be?
A visual guide to the coronavirus outbreak
One of the eight people infected in the UK is a British man who caught the virus at a conference in Singapore and travelled to a ski resort in France.
He was diagnosed in Brighton, and is being treated at St Thomas’ Hospital in London.
He has been linked to five of the other cases – four of which were announced on Monday.
In addition to the eight cases in the UK, five British nationals tested positive in France following the Brighton man’s trip to the ski resort.
Where had the Brighton coronavirus patient been?
The British man visited Singapore on business from 20 to 23 January, before staying at a chalet in the Alpine resort area of Les Contamines-Montjoie near Mont Blanc.
He flew back to the UK from Geneva on 28 January, easyJet confirmed.
Four adults and a nine-year-old child were subsequently diagnosed with the virus after coming into contact with him. They are not in a serious condition.