The National Health Commission said that 1,795 patients remained in critical condition, and 17,988 people were suspected of being infected with the virus as of Friday night, reports Xinhua news agency.
Citing the need to relieve pressure on authorities, he said that foreign nationals who had travelled in China in the past 14 days would be denied entry to the US.
Another confirmed case in the US on Friday brought the total number to seven, while 191 people were currently under observation.
The US announcement came as other countries around the world also scrambled to contain the spread of the new virus.
On Saturday, Australia said it would refuse entry to all non-citizens arriving from China and nationals coming from the Asian country would be quarantined for two weeks, according to the BBC report.
The UK, South Korea, Singapore and New Zealand were all expected to quarantine evacuees for two weeks to monitor them for symptoms and avoid contagion.
"As we know from other scenarios, be it Ebola or other cases, whenever people want to travel, they will. And if the official paths are not opened, they will find unofficial paths," the BBC quoted Lindmeier as saying.
He said the best way to track the virus was at official border crossings.
Meanwhile, estimates by the University of Hong Kong suggest the true total number of cases could be far higher than official figures suggest.
Outside China, confirmed cases were reported in Hong Kong, Macao, US, the UK, Japan, Thailand, Singapore, Australia, Taiwan, Malaysia, South Korea, France, Vietnam, Germany, UAE, Canada, Italy, Russia, Cambodia, Finland, Sweden, India, Nepal, Sri Lanka and the Philippines.
However, no deaths were reported from any other country except China.
On Thursday, the World Health Organization declared a global health emergency over the new virus.