China has reported 35,183 new COVID-19 infections on November 25, of which 3,474 were symptomatic and 31,709 were asymptomatic, the National Health Commission says, setting a new high for the third consecutive day.

That compared with 32,943 new cases a day earlier: 3103 symptomatic and 29,840 asymptomatic infections, which China counts separately.

Excluding imported cases, China reported 34,909 new local cases on Friday, of which 3405 were symptomatic and 31,504 were asymptomatic, up from 32,695 a day earlier.

There were no deaths, keeping fatalities at 5232. As of Friday, mainland China had confirmed 304,093 cases with symptoms.

Megacities continue to struggle to contain outbreaks, with Chongqing and Guangzhou recording the bulk of new cases.

Chongqing, a southwestern city of 32 million people, reported 7721 new local cases for Friday, a jump of almost 20 per cent from the previous day.

Guangzhou, a prosperous city of nearly 19 million people in southern China, reported 7419 new cases for Friday, down slightly from 7524 cases a day earlier.

New cases for Friday in the capital Beijing jumped 58 per cent to 2595, according to figures released by local health authorities on Saturday.

There are COVID-19 outbreaks in almost all Chinese provinces, with Hebei, Sichuan, Shanxi and Qinghai provinces each registering more than a thousand new cases on Friday.