The latest case, in a man from the same family as another patient, brings the worldwide number of confirmed infections with the new virus - known as novel coronavirus, or NCoV - to 11. Of those, five have died. Most of the infected lived or had recently been in the Middle East. Three have been diagnosed in Britain. NCoV was identified when the World Health Organisation (WHO) issued an international alert in September 2012 saying a virus previously unknown in humans had infected a Qatari man who had recently been in Saudi Arabia. The virus belongs to the same family as SARS, or Severe Acute Respiratory Syndrome - a coronavirus that emerged in China in 2002 and killed about a tenth of the 8,000 people it infected worldwide. Symptoms common to both viruses include severe respiratory illness, fever, coughing and breathing difficulties.
The World Health Organization is keeping a close eye on a disease outbreak in Saudi Arabia caused by a virus in the same family as the one that caused SARS. The new coronavirus reportedly causes severe pneumonia and kidney failure.