Three years into the COVID-19 pandemic, China has optimized its measures with policies on testing, quarantine and travel. Taking into account the viral spread and the changing pandemic situation, China will downgrade its COVID management from Class A to Class B, starting from January 8, 2023. How can China meet the challenges in the new phase of COVID-19 response? And how can China better cooperate with other countries to continue battling COVID-19? Stay tuned for more on World Insight with Tian Wei on Friday 22:30 BJT.