News > China under pressure to reveal Covid-19 vaccine data after Pfizer success

China under pressure to reveal Covid-19 vaccine data after Pfizer success

Pfizer Inc. and BioNTech SE announced this week that its vaccine appears more than 90% effective in stopping Covid-19 infections.

At around the same time, China saw the final-stage trial of one of its top vaccine candidates halted in Brazil due to a serious adverse event. As China continues to push its own vaccines through the final stage of clinical trial, the need to address public perception about its vaccine safety issues is more pressing now than ever.