Patents are just one part of the vaccine puzzle. The key is the know-how about the actual manufacturing process.
While vaccine makers have voiced broad commitment to cooperating to boost production, industry representatives have insisted that intellectual property waivers and forced technology sharing was the wrong way to go.
The suggestion by head of China's Center for Disease Control and Prevention marks the first time a top Chinese expert has publicly alluded to the relatively low efficacy of the country's vaccines.
Phase 3 trials carried out on 2,260 adolescents in the US "demonstrated 100 percent efficacy and robust antibody responses," the companies say.
The scientists used spent vials of the Moderna vaccine to reverse-engineer its mRNA sequences.
Experts recommend that people with a history of allergic reactions should be under a 30-minute observation after taking the vaccine shot.
The development of Covid-19 vaccines in record time will not be enough to fix big pharma’s tarnished image.
In a special report, Reuters unpacks and delivers the most detailed account to date of what went wrong with the dosing in the Oxford-AstraZeneca vaccine trial.
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