A Chinese foreign ministry spokesperson has defended the country's zero-coronavirus policy after the World Health Organization chief said it is not sustainable.

Zhao Lijian spoke to reporters on Wednesday about the comment made by WHO Director-General Tedros Adhanom Ghebreyesus on the previous day. Tedros suggested that China needs to seek an alternative approach in its anti-coronavirus measures.

Zhao said the Chinese government's virus control measures can stand the test of history and they are scientific and effective.

He said everyone in the international community acknowledges "the fact" that China is one of the world's most successful countries in fighting the virus.

The spokesperson said China hopes that the individual concerned can view the country's COVID policy objectively and rationally, instead of making what he called irresponsible remarks.