Nearly three years into the pandemic, China is sticking with a strict COVID-19 containment policy that has caused mounting economic damage and widespread frustration, while keeping its borders shut for most international travel. China has yet to describe when or how it will begin to exit from an approach that it calls "dynamic zero". Here are key facts on China's zero-COVID policy. WHAT IS ZERO-COVID? China says it recognises domestic outbreaks are inevitable, and its policies are not geared towards having zero cases at all times but instead, are about "dynamically" taking action when cases surface. Dynamic-zero is two-pronged -...