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Reuters As more Covid-19 vaccines approach the finish line of regulatory approvals , the next challenge will be to produce and deliver hundreds of millions of doses as quickly as possible. Vaccines using traditional technology – like those developed in China – and the more advanced versions like Pfizer/BioNTech and Moderna’s mRNA vaccines – have very different hurdles to overcome. Experts said established technologies that used inactivated and vectored vaccines – like those being developed by China’s CanSino and Britain’s Oxford/AstraZeneca – had a short-term advantage because...

China's Sinopharm Covid vaccine: how effective is it and where will it be rolled out? Helen Davidson © Provided by The Guardian Photograph: Tingshu Wang/Reuters Trials in the United Arab Emirates have shown that China’s Sinopharm vaccine has 86% efficacy. So what is the Chinese treatment, where is it being trialled and will it challenge the vaccines being developed in western countries? © Photograph: Tingshu Wang/Reuters Sinopharm is a state-owned Chinese pharmaceutical company and is trialling two Covid-19 vaccines in countries including UAe, Argentina and Morocco. W...

China's Sinopharm Covid vaccine: how effective is it and where will it be rolled out? Helen Davidson © Provided by The Guardian Photograph: Tingshu Wang/Reuters Trials in the United Arab Emirates have shown that China’s Sinopharm vaccine has 86% efficacy. So what is the Chinese treatment, where is it being trialled and will it challenge the vaccines being developed in western countries? © Photograph: Tingshu Wang/Reuters Sinopharm is a state-owned Chinese pharmaceutical company and is trialling two Covid-19 vaccines in countries including UAe, Argentina and Morocco. W...