The World Health Organisation (WHO) has warned that a new coronavirus strain [could / should] be passed from human to human. The virus, called nCoV-EMC, looks like an [offshore / offshoot] of the Severe Acute Respiratory Syndrome (SARS), which killed 775 people and [infections / infected] 8,273 between 2002-03. However, the WHO was quick to point [at / out] that the new strain isn't as [violent / virulent] as SARS. The warning came after the 34th [case / cause] worldwide came to [light / lightning] on Sunday. A man is in a "very serious but [staple / stable] " condition in an intensive care unit in France. It is believed he [constructed / contracted] the virus while vacationing in Dubai in April. The new coronavirus has already claimed the lives of 18 people, 15 of the fatalities [being / were] in Saudi Arabia. Coronavirus [cases / causes] respiratory illnesses in both humans and animals. Unlike SARS, which [spread / spared] from birds and animals to humans, the new strain could have [mated / mutated] to spread between people. A WHO spokesman, Keiji Fukuda, told reporters in the Saudi capital Riyadh on Sunday that the new virus [posed / posted] an "important and [major / minor] challenge" for those countries already [affective / affected] and for the whole world. He stressed that [when / while] the new virus was not SARS, it was very worrying. He said: "Of most [worry / concern] is the fact that the different clusters seen in [multiple / multiply] countries increasingly support the hypothesis that when there is [close / closed] contact, this coronavirus can transmit from person to person".