The commission said that it had begun including cases diagnosed through new clinical methods.
The death toll from the coronavirus is still shooting up in China.
The scale of the epidemic swelled this week after authorities in central Hubei province, the epicentre of the contagion, changed their criteria for counting cases, adding thousands of new patients to their tally. The daily death toll nearly halved when compared to Wednesday's 14,840.
The National Health Commission reported five other deaths and 217 new cases elsewhere in China, as the number of new patients outside Hubei fell for a 10th straight day.
Cruise ship situation is "dynamic": There have now been 219 cases of the coronavirus found on board the cruise liner Diamond Princess, which is in quarantine off the coast of Yokohama in Japan.
The reports did not give a reason for the dismissals but the two are the most high-profile Chinese officials to be removed from duty following the coronavirus outbreak that began in Wuhan late a year ago.
Some 218 passengers have so far tested positive for the virus which was reportedly first transmitted by a man from Hong Kong.
But in Geneva, World Health Organization officials warned Wednesday against reaching premature conclusions on the Chinese data. The hope is that more people will be able to receive treatment by receiving this diagnosis.
Japan plans to move passengers who wish to leave the ship in phases, with the most "medically vulnerable" guests being moved in the first phase, according to Princess Cruises, the line that owns the Diamond Princess.
More than 64,400 people are now recorded as having been made ill by the virus in China, with the last two days showing a steep rise after a change in diagnostic methods. A team of health officials will board the ship to conduct health checks on the 1,455 passengers and 802 crew members before they will be allowed to finally disembark.
The outbreak has led to the firing of Jiang Chaoliang as the ruling Communist Party chief in Hubei, just days after the province's top two health officials were removed from their posts. "We're a little disappointed in the lack of transparency coming from the Chinese, these numbers are jumping around. there was some surprise", he told reporters.
Another Labour MP who went to the conference, Lillian Greenwood, on Saturday said she is cancelling all her public engagements and is at home to be "extra cautious".
Kudlow said President Xi Jinping had assured President Donald Trump that Beijing would accept United States help, but "they won't let us".
The outbreak, believed to have emerged from a Wuhan market where wildlife was traded illegally, has triggered a backlash against local political leaders.