Pfizer’s Covid-19 Vaccine Generated 10 Times More Antibodies Than China’s Sinovac Shot, Hong Kong Study Shows

People who were inoculated with the Pfizer-BioNTech Covid-19 vaccine had ten times the amount of antibodies compared to those who had received the Chinese-developed Sinovac vaccine, a Hong Kong study has shown, likely offering evidence about the varying levels of protection offered by different Covid jabs.