Meanwhile, Chinese state media revealed late Friday that Beijing's virus prevention working group has ordered everyone returning to the capital to go into quarantine for 14 days or risk punishment, in the latest attempt to stop the virus from spreading.
"Those who refuse to accept home or centralised observation and other prevention and control measures will be held accountable under law", it said.
The official Xinhua news agency says former Shanghai Mayor Ying Yong will replace Jiang, who had been criticized by the public for his handling of the outbreak of the COVID-19 virus.
Many travel restrictions are still in place and many factories have yet to reopen.More news: 'Tuchel is PSG's worst coach since the Qatari takeover'
More than 66,000 people have now been infected, with most deaths occurring in Hubei.
The National Health Commission disclosed a statistical error, however, saying it removed 108 deaths in Hubei that had been double-counted, but the nationwide toll still rose to 1,383 on Friday.
State Councillor Wang Yi, who also serves as China's foreign minister, said China has taken decisive measures to fight the epidemic, many going beyond worldwide health regulations and World Health Organization (WHO) recommendations.
Amid these measures, canteen lunches have been banned in favour of boxed meals eaten at desks.
The number, however, was nearly half those reported the previous day.
The death toll from the coronavirus is higher than the severe acute respiratory syndrome (SARS) outbreak in 2002-03, which is believed to have killed 774 people and sickened almost 8,100 in China and Hong Kong.More news: Nikon's D6 flagship DSLR is here to ace sports photography
Africa recorded its first case, in Egypt, where the affected person, a foreigner, was been put into isolation in hospital. World Rugby says the Singapore and Hong Kong rounds of the popular Sevens Series have been moved from April until October.
The virus is killing about 2% of those infected, but has spread faster than other respiratory viruses that emerged this century.
The mission will also seek more details on how, where and when the more than 1,700 healthworkers infected contracted the new virus, World Health Organization officials said.
Economists polled by Reuters said China's economic downturn would be short-lived if the outbreak was contained, but expected this quarter would show China's slowest growth rate since the global financial crisis.
Authorities said Friday 1,716 medical workers have been infected during the outbreak, with six dying from the illness.
The US State Department said it was "deeply concerned" about the vulnerability of China's northern neighbor, North Korea, and offered to support aid work in the country. A total of 8,096 people had been discharged from the hospital after recovery.More news: Google gets in on the emoji mashup madness by launching 'Emoji Kitchen'
Yesterday, some of the passengers on the Diamond Princess were allowed to disembark - with priority for older passengers confined to windowless cabins - and complete their quarantine on shore.