SCMP reporters Mimi Lau, Simone McCarthy and Josephine Ma discuss the latest coronavirus news from inside mainland China and around the world. Hear what we know about the variant called Omicron, the new pandemic treaty agreed to at an historic World Health Assembly meeting, and hear about how China stands on the verge of a new policy on booster shots as well as the latest updates on advances and trials for monoclonal antibody treatments to treat Covid-19 infections.