China has administered more than one billion doses of its homegrown COVID-19 vaccines, the majority of which were developed by local companies Sinovac and Sinopharm. So what do we know about them?
Articles on Sinovac
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With richer countries having bought up most of the leading western vaccines, others are looking to India, China and Russia for supplies.
A primer on Sinovac, Sinopharm and CanSino, and their prospects for achieving a world first for coronavirus.


