Deadly new virus is well adapted to infect humans, study finds
The virus, called novel coronavirus or NCoV, is from the same family as the common cold and as SARS, or Severe Acute Respiratory Syndrome. There have been 12 confirmed cases worldwide - including in Saudi Arabia, Jordan and Britain - and five patients have died.
In one of the first published studies about NCoV, which was unknown in humans until it was identified in September 2012, researchers said it could penetrate the lining of passageways in the lungs and evade the immune system as easily as a cold virus can.
This shows it "grows very efficiently" in human cells and suggests it is well-equipped for infecting humans, said Volker Thiel of the Institute of Immunobiology at Kantonal Hospital in Switzerland, who led the study.
NCoV was identified when the World Health Organisation issued an international alert in September saying a completely new virus had infected a Qatari man in Britain who had recently been in Saudi Arabia.
Coronaviruses are a family of viruses that includes those that cause the common cold as well as the one that caused SARS - which emerged in China in 2002 and killed about a 10th of the 8,000 people it infected worldwide.
Symptoms of both NCoV and SARS include severe respiratory illness, fever, coughing and breathing difficulties. Of the 12 cases confirmed
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