The death toll has reached 56, while the number of infections climbed to more than 2,000-a more than thirty-fold increase since Chinese authorities reported the virus' first victim two weeks ago.
And all Chinese travel agencies were instructed to cease all tour-group operations, the state-owned China Daily reported.
It has since spread to more than 12 countries and regions outside of China, causing two Americans to fall ill in Seattle and Chicago.
Chinese authorities have imposed travel restrictions on Wuhan and almost 20 cities in Hubei Province, with almost 50 million people quarantined.
China's National Health Commission has ordered nationwide measures to detect and isolate people carrying the virus on planes, trains and buses across the country. He developed a cough the next day, sought treatment on January 24 and was immediately isolated.
Authorities around the world have confirmed more than 1,200 coronavirus cases so far, including two in the United States.
The city is rushing to build a 1000-bed hospital by Monday, state media said.
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Only vehicles authorised to carry supplies and for other needs would be permitted after that. The city will assign 6,000 taxis to neighborhoods to help people get around if they need to.
Elsewhere, Hong Kong, where there's five confirmed cases, on Saturday declared the outbreak "an emergency", scrapping Lunar New Year celebrations, restricting links to the mainland, and keeping schools closed.
In Jingzhou, about 220 kilometres west of Wuhan, doctors say they are also grappling with shortages.
The medical staff were air-dropped into Wuhan and dispatched to multiple hospitals.
The newly-identified coronavirus has created alarm because there are still many unknowns surrounding it, such as how risky it is and how easily it spreads between people. It can worsen pneumonia, which can be fatal. Schools will remain closed until February 17, long after the Chinese New Year holidays, which begin today, should have finished.
Singapore's Ministry of Foreign Affairs on Saturday said they were in contact with 35 Singaporeans living in Wuhan city, and so far, no one has reported illness. "In reality, it's not possible", she said. "We ended up canceling". Flights from Wuhan to Hong Kong have only been halted since Thursday, when Wuhan was locked down by local authorities. Some parts of the country had checkpoints for temperature readings and made masks mandatory.
Like the flu, the Wuhan coronavirus seems to have a greater impact on older adults and people with underlying health conditions.
Video has emerged, showing the chaos inside Wuhan hospitals.
450 military medical staff arrived in Wuhan who have experience in handling such situations, having handled the SARS and Ebola epidemic.