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On Thursday, the agency updated its warning from a level 2 alert which means 'practice enhanced precautions' to level 3, which urges Americans to 'avoid unessential travel.'
So far, the virus, known as 2019-nCoV, has sickened more than 640 people around the world, with cases reaching as far as the US and leaving 18 dead.
Heels - Government - Wuhan - City - People
It comes on the heels of the Chinese government announcing that it was locking down Wuhan, the city of 11 million people and the epicenter of the outbreak.
Meanwhile, the State Department had advised Americans planning to visit China to exercise increased caution.
US - Health - Officials - Passengers - China
US health officials started screening passengers arriving from China at John F Kennedy International Airport in New York, San Francisco International Airport and Los Angeles International Airport after the first case was confirmed in Washington state on Tuesday.
Screening has now been expanded to two more airports: Hartsfield-Jackson Atlanta International and Chicago O'Hare.
CDC - Patient - Man - Snohomish - County
According to the CDC, the first patient - a man who lives in Snohomish County and is in his 30s - arrived in the US on January 15 after visiting Wuhan.
He reportedly had no symptoms of the virus upon arrival but, after reading about the outbreak online and developing symptoms, he contacted his doctor.
Man - Hospital - Seattle
The man is currently quarantined in a hospital outside of Seattle.
Meanwhile, in China, officials have taken unprecedented measures in an attempt to stop the spread of this rapidly-developing outbreak.
Thursday - Authorities
On Thursday, authorities...
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