What is coronavirus and how worried should we be?
The Guardian’s health editor, Sarah Boseley, answers some of the most common and pressing questions surrounding the recent coronavirus outbreak in Wuhan, China
What is the virus causing illness in Wuhan?
It is a novel coronavirus – that is to say, a member of the coronavirus family that has never been encountered before. Like other coronaviruses, it has come from animals. Many of those infected either worked or frequently shopped in the Huanan seafood wholesale market in the centre of the Chinese city, which also sold live and newly slaughtered animals. New and troubling viruses usually originate in animal hosts. Ebola and flu are examples.
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