Drugmakers are racing to develop a cure for the contagion that has so far killed at least 365,000 people. More than 100 vaccines for the virus are being developed globally, but only a handful have made it to the crucial and final human clinical trial stage, with Chinese scientists leading the way.
In total, five vaccines developed by Chinese companies are being tested on humans, the most in any country. Beijing has mobilized its health authorities, drug regulators and research institutes to work around the clock with local companies to come up with the world’s first successful one for Covid-19.
President Xi Jinping
has promised to share any successful vaccine globally, but Chinese companies still face challenges. Phase III testing needs to be done in a place where the coronavirus
is still spreading rapidly, and China’s cases have dwindled to a handful each day. Also, an effective vaccine needs massive production capabilities in order to meet global distribution demands.
The vaccine candidate from Beijing Institute of Biological Products and China
National Biotec Group employs a killed version of the novel coronavirus
that can still trigger an immune response.
Such inactivated vaccines have been developed for many years to protect populations from diseases including polio and hepatitis.
While inactivated vaccines may be slower to develop initially, their familiar path to mass production might allow them to overtake shots made by newer, cutting-edge approaches.