No fatalities were recorded in 24 hours, 43 people were discharged from medical institutions.
All six new cases of infection are imported: four were detected in Shanghai, two in Guangdong.
In total, since the beginning of the pandemic, Chinese doctors have identified 4,974 cases among those who arrived from abroad, 4,818 of them have already recovered and were discharged.
156 people are undergoing treatment.
Earlier it was reported that China approved two more of its own vaccines against COVID-19 for use.