China's Brii says its COVID-19 antibody cocktail retains activity against Omicron

China's Brii Biosciences said on Sunday lab studies showed that its COVID-19 antibody cocktail retained activity against the Omicron variant, although one of the antibodies showed a substantial drop in activity when tested alone. Test details for the dual-antibody treatment, which last week became the first approved COVID-19 antibody cocktail in China, would not be available until publication in a scientific journal, but results from three independent labs showed similar pattern, Brii chief executive Hong Zhi said on Monday