"The country is facing a new situation and new tasks in epidemic prevention and control as the pathogenicity of the Omicron virus weakens, more people are vaccinated and experience in containing the virus is accumulated," Sun said in comments reported in state media.
Sun also urged further "optimisation" of testing, treatment and quarantine policies.
The mention of a weakening pathogenicity contrasts with earlier messages from authorities about the deadliness of the virus.
CHANGING RULES
Less than 24 hours after violent protests in Guangzhou, authorities in at least seven districts of the sprawling manufacturing hub north of Hong Kong, said they were lifting temporary lockdowns. One district said it would allow in-person classes in schools to resume and would reopen restaurants and other businesses including cinemas.
Some changes are being implemented with little fanfare.
A community of thousands in east Beijing is allowing infected people with mild symptoms to isolate at home, according to new rules issued by the neighbourhood committee and seen by Reuters.
Neighbours on the same floor and three stories above and below the home of a positive case should also quarantine at home, a committee member said.
That is a far cry from quarantine protocols earlier in the year when entire communities were locked down, sometimes for weeks, after even just one positive case was found.
Another community nearby is holding an online poll this week on the possibility of positive cases isolating at home, residents said.
"I certainly welcome the decision by our residential community to run this vote regardless of the outcome," said resident Tom Simpson, managing director for China at the China-Britain Business Council.
He said his main concern was being forced to go into a quarantine facility, where "conditions can be grim to say the least".
Prominent nationalist commentator Hu Xijin said in a social media post on Wednesday that many asymptomatic carriers of coronavirus in Beijing were already quarantining at home.
The southwestern city of Chongqing will allow close contacts of people with COVID-19, who meet certain conditions, to quarantine at home, while Zhengzhou in central China announced the "orderly" resumption of businesses, including supermarkets, gyms and restaurants.
National health officials said this week authorities would respond to "urgent concerns" raised by the public and that COVID-19 rules should be implemented more flexibly, according to a region's conditions.
REOPENING NEXT YEAR?
Expectations have grown around the world that China, while still making efforts to contain infections in the near term, could look to re-open at some point next year once it reaches more adequate vaccination levels among its elderly.
Health experts warn of widespread illness and death if COVID-19 is let loose before vaccination is ramped up.
Chinese stocks and markets around the world dipped initially after the weekend protests in Shanghai, Beijing and other cities, but later recovered on hopes that public pressure could lead to a different COVID-19 approach by authorities.
More COVID-19 outbreaks could weigh on China's economic activity in the near term, the International Monetary Fund said on Wednesday, adding it saw scope for a safe recalibration of policies that could allow economic growth to pick up in 2023.
China's strict containment measures have dampened domestic economic activity this year and spilled over to other countries through supply chain interruptions.
Following downbeat data in an official survey on Wednesday, the Caixin/S&P Global manufacturing purchasing managers' index showed factory activity shrank in November for a fourth consecutive month.
While the recent change in tone over COVID-19 appears to respond to the public discontent with the strictness of the measures, authorities are in parallel seeking out those who were present at the demonstrations.
China Dissent Monitor, run by US government-funded Freedom House, estimated at least 27 demonstrations took place across China from Saturday to Monday. Australia's ASPI think tank estimated 43 protests in 22 cities.
