Vaccine manufacturing is complex, with lots of potential points for errors. But it also has extensive quality control checks and approvals.
While some of the authorised COVID-19 vaccines are grown, others are built.
Plus new research on why China is closing down coal-fired power stations. Listen to episode 3 of The Conversation Weekly.
Behind Canada’s current COVID-19 vaccine shortage is a decades-long tale of unheeded warnings, missed opportunities and dismantled resources that was never going to end well.
Rollout of COVID-19 vaccines has begun. But getting the jab doesn't mean abandoning masks, distancing and handwashing. Here's why the current preventive measures must continue post-vaccine.
Manufacturing one of the world's most important vaccines will have several benefits for South Africa.