Different Covid-19 vaccines must be compared to ensure only the most effective are used, experts at Oxford University have said. Researchers said it is unlikely ‘we will see a single vaccine winner in the race against Covid-19’. They warned that each candidate is likely to have its own ‘distinct’ advantages due to differences in design. And the team admitted there will ‘probably be challenges with manufacturing and supplying a single vaccine at the scale required’. In a review published in The Lancet Infectious Diseases journal, the scientists said a meaningful comparison of different candidates is required to ensure only the most effective vaccines are deployed. More than 200 Covid-19 vaccines are being trialled worldwide, including nine which entered the final stage of experiments — where they are given to tens of thousands of people to determine their safety and effectiveness. An effective vaccine is one that can act against infection, disease, or transmission – potentially keeping the Covid-19 pandemic under control. Top experts say a vaccine that works is likely to be the only way the world can safely return to life before the pandemic. It comes after Imperial College London’s Professor Wendy Barclay claimed a vaccine could provide protection… Read full this story
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