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A coronavirus outbreak has killed 25 people and infected more than 830 in China.
It has spread to eight other countries, including the US.
Public-health experts say the combination of these conditions was a recipe for a viral outbreak.
When Chinese authorities first reported an outbreak of a new coronavirus in Wuhan, China, many public health experts had a similar reaction: It was only a matter of time.
“This has always been waiting to happen,” Adrian Hyzler, the chief medical officer at Healix International, which offers risk-management solutions for global travelers, told Business Insider. “Wuhan is such a