Wuhan is bracing for a further 1,000 coronavirus patients as Beijing warned the the deadly bug is more contagious than SARS during the incubation stage.
The mayor of the disease-plagued city Zhou Xianwan said officials are stepping up construction of specialised hospitals to deal with infection victims.
It came after Beijing's health minister assured face-masked reporters that authorities have cranked up efforts to stop the spread of disease after conceding their knowledge of how it mutates is limited.
Ma Xiaowei said 'it seems like the ability of the virus to spread is getting stronger' and added that the administration will continue to curb transport links and scrap planned public gatherings.
More than 2,000 people have now been infected worldwide and 56 have been killed in China, sparking President Xi Jinping to yesterday issue an unprecedented warning of a 'grave situation'.
Yet top health official Gao Fu said the coronavirus was 'not as powerful' as the SARS outbreak which rocked China in 2003, although it is becoming more contagious.
While SARS-infected people were only contagious when their symptoms were showing, coronavirus victims can infect others during their incubation period which can be up to 14 days.
Casting a large shadow over this morning's press conference was a video of nurse battling the outbreak who claimed the government is playing down the volume of the infections and said the true figure is 90,000.
But regime authorities batted back accusations of a cover-up and insisted it had 'followed the principles of openness and transparency' since the coronavirus broke out in Wuhan, Hubei province, last week.
And in a move to further project transparency, they announced daily press briefings on the threat posed by the virus starting tomorrow.
Ma said he has 'maintained close communication with the World Health Organisation' and invited inspectors to examine the country's response.
He also revealed Beijing is sharing information with other nations after the United States, Thailand, South Korea, Japan, Australia, France and Canada all confirmed cases.
Medical staff wearing clothing to protect against the coronavirus walk outside a hospital in Wuhan, which was where the infection broke out
Members of the media have their temperature checked before attending a news conference by the State Council Information Office about the outbreak of the new coronavirus in Beijing
Director of the Chinese Center for Disease Control and Prevention Gao Fu speaks during a State Council Information Office press conference
A woman wearing a protective facemask returns from a market in Wuhan which is on lock-down following the spread of cornnavirus
This map shows all the areas where coronavirus has been identified so far, including Canada
Can tourists still travel to China?
Flights to and from the China are still available, but tourists will be hamstrung in their ability to travel.
The UK Foreign Office has advised against all travel to the Hubei province where the coronavirus spawned.
The eastern city of Wuhan is under lock-down and the government has enforced an effective travel ban.
Four cities - including Beijing, Shanghai, and the eastern province of Shandong - announced bans on long-distance buses from entering or leaving their borders.
Cruise operators including Royal Caribbean Cruises, and Costa Cruises said they had cancelled a combined 12 cruises that had been scheduled to embark from Chinese ports before Feb 2.
Many cinemas across China were closed with major film premieres postponed.
Shanghai Disneyland, which expected 100,000 visitors daily through the holiday period, has already closed.
Airports around the world have stepped up screening of passengers from China, although some health officials and experts have questioned the effectiveness of these efforts.
As governments in China, Britain and around the world double down efforts fend off the virus:
Ma's insistence of transparency came after the unnamed woman's warning from the heart of the outbreak.
Speaking in video footage seen online, the unnamed woman says: 'I'm in the area where the coronavirus started. I'm here to tell the truth. At this moment, Hubei province, including Wuhan area, even China, 90,000 people have been infected by coronavirus.'
Despite China being initially praised for its transparency in managing the situation, critics have now claimed that officials are scrubbing the internet of videos that reveal the true situation.
However, the nurse's report has been viewed almost two million times on YouTube. In the footage, she warns people not to go outside and to refrain from celebrating the Chinese New Year.
She said: 'I would like to say that everyone who is currently watching this video should not go outside. Don't party. Do not eat out. Once a year, we celebrate Chinese New Year. If you are safe now, you will be able to meet your family again healthy next year.'
The unnamed woman issued the warning in a social media video, saying she is working in Hubei province which includes the Wuhan area
An ambulance driver, wearing protective clothing to help stop the spread of a deadly SARS-like virus which originated in the central Chinese city of Wuhan
Top health official Gao Fu (pictured) said the coronavirus was 'not as powerful' as the SARS outbreak which rocked China in 2003
Medical team members heading to Wuhan to reinforce hospitals fighting the coronavirus outbreak prepare to board the train at Nanjing South Railway Station in Nanjing City
Tourists from an Air China flight from Beijing wear protective masks as they arrive at Charles de Gaulle airport in Paris, France, which has confirmed three cases
Making a desperate plea for supplies, she said: 'We don't care what the government says. I will tell you through social media. Everyone, please donate masks, glasses and clothes to Wuhan.
'Please help us. Please donate disposable goggles, disposable masks and disposable clothing. Currently our resources are not enough.'
Today, the health ministry admitted it needed 100,000 protective suits, but currently only had 13,000 in Wuhan.
It said stock was being reallocated to the crisis-hit region from the country's central reserve, as well as buying suits from other countries.
Horrifying clips have been posted online by shocked citizens only to be deleted shortly after. In one, the sick are seen sitting between drips and oxygen tanks next to three dead bodies covered in white sheets. The footage was deleted from social media channel Weibo.
Last week, in rare public dissent, a senior journalist at a Hubei provincial newspaper run by the ruling Communist Party called for an 'immediate' change of leadership in Wuhan on Weibo. The post was later removed.
The People's Daily, a state-owned newspaper, posted a video of an apparently cured patient flashing the peace sign alongside four medics.
But the Global Times revealed that vital resources, including masks and goggles, were urgently needed.
Critics have also claimed that many health experts who would have been able to warn the government at an early stage of the dangers of coronavirus have been detained or had their research stopped because they were not working within the Chinese state.
The accusations of a cover-up echo the furore surrounding the SARS (severe acute respiratory syndrome) epidemic in 2002 when the government concealed the existence of the illness not just from the outside world but from its own people.
But Chinese officials told reporters that the new disease was less powerful than SARS - though it was becoming more contagious.
'From what we see now, this disease is indeed...not as powerful as SARS,' said Gao Fu, head of China's Centre for Disease Control and Prevention, at a press briefing in Beijing.