Covid-19 roundup: Sinopharm touts 'better than expected' PhIII vaccine data; After Pfizer/BioNTech, Russia claims vaccine is 92% effective on slimmer evidence
On the heels of groundbreaking Covid-19 vaccine data from Pfizer and BioNTech — and Russia’s claims that its Sputnik V is just as good — China’s Sinopharm …
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