BEIJING: China will not relax its COVID-19 measures but will keep improving them according to the changing epidemic situation and mutation of the virus and will be more scientifically accurate in their implementation, a disease expert said.

China is very cautious in every adjustment it makes in its COVID policies, the National Health Commission said in a statement on Friday, citing Wang Liping, a researcher from the China Center for Disease Control and Prevention.

In its first meeting since being formed last month after the ruling Communist Party's twice-a-decade congress, the Politburo Standing Committee said China's epidemic prevention measures must not be relaxed, according to state media on Thursday.