"We are steadily pushing forward the disease control and prevention ... But right now we are facing an extremely severe public health crisis," he told a news briefing.
Vehicles carrying emergency supplies and medical staff for Wuhan would be exempted from tolls and given traffic priority, China's transportation ministry said on Saturday.
Wuhan said it would ban non-essential vehicles from its downtown starting Sunday to control the spread of the virus, further paralysing a city of 11 million that has been on virtual lockdown since Thursday, with nearly all flights cancelled and checkpoints blocking the main roads leading out of town.
Authorities have since imposed transport restrictions on nearly all of Hubei province, which has a population of 59 million.
In Australia, three men, aged 53, 43 and 35 in New South Wales were in stable condition after they were confirmed to have the virus after returning from Wuhan earlier this month, the state's health minister, Brad Hazzard said.
"The community needs to understand that it is being well handled," Hazzard said, urging calm.
A Chinese national
in his 50s, who had been in Wuhan, was also in stable condition in a Melbourne hospital after arriving from China
on Jan. 19, Victoria Health officials said.
Global Television Network reported in a tweet on Saturday that a doctor who had been treating patients in Wuhan, 62-year-old Liang Wudong, had died from the virus.
It was not immediately clear if his death was already counted in the official toll of 41, of which 39 were in the central province of Hubei, where Wuhan is located.
U.S. coffee chain Starbucks
said on Saturday that it was closing all its outlets in Hubei province for the week-long Lunar New Year holiday, following a similar move by McDonald's in five Hubei cities.
In Beijing on Saturday, workers in white protective suits checked temperatures of passengers entering the subway at the central railway station, while some train services in eastern China's Yangtze River Delta region were suspended, the local railway operator said.
The number of confirmed cases in China
stands at 1,287, the National
Health Commission said on Saturday.
The virus has also been detected in Thailand, Vietnam, Singapore, Japan, South Korea, Taiwan, Nepal, Malaysia, France, the United States and Australia.
The U.S. Centers for Disease Control and Prevention said on Friday it had 63 patients under investigation, with two confirmed cases, both in people who had travelled to Wuhan.
While China has called for transparency in managing the crisis, after cover-up of the 2002/2003 SARS (Severe Acute Respiratory Syndrome), officials in Wuhan have come in for criticism over their handling of the outbreak.
In rare public dissent, a senior journalist at a Hubei provincial newspaper run by the ruling Communist Party on Friday called for a "immediate" change of leadership in Wuhan on the Twitter-like Weibo. The post was later removed.
REINFORCEMENTS TO WUHAN
The World Health Organization (WHO) declared the new coronavirus
an "emergency in China" this week but stopped short of declaring it of international concern.
Human-to-human transmission has been observed in the virus.
Health Commission said it had formed six medical teams totalling 1,230 medical staff to help Wuhan.
Hubei province, where authorities are rushing to build a 1,000 bed hospital in six days to treat patients, announced on Saturday that there were 658 patients affected by the virus in treatment, 57 of whom were critically ill.
The newly-identified coronavirus
has created alarm because there are still many unknowns surrounding it, such as how dangerous it is and how easily it spreads between people.
It can cause pneumonia, which has been deadly in some cases.
Symptoms include fever, difficulty breathing and coughing.
Most of the fatalities have been in elderly patients, many with pre-existing conditions, the WHO said.
NEW YEAR DISRUPTIONS
Airports around the world have stepped up screening of passengers from China, though some health officials and experts have questioned the effectiveness of such screenings and of the lockdown.
Health officials fear the transmission rate could accelerate as hundreds of millions of Chinese travel before and during the week-long Lunar New Year holiday, which began on Saturday, although many have cancelled their plans, with airlines and railways in China providing free refunds.
The virus outbreak and efforts to contain it have put a dampener on what is ordinarily a festive time of year.
Sanya, a popular resort destination on the southern Chinese island of Hainan, announced that it was shutting all tourist sites, while the island's capital city, Haikou, said visitors from Wuhan would be placed under 14-day quarantine in a hotel.
Shanghai Disneyland was closed from Saturday. The theme park has a 100,000 daily capacity and sold out during last year's Lunar New Year holiday.
Beijing's Lama Temple, where people traditionally make offerings for the new year, has also closed, as have some other temples and the Forbidden City, the capital's most famous tourist attraction. Sections of the Great Wall near the capital were also closed off.