Chris Smith: Covid-19 vaccine trial pause shows it's no

Chris Smith: Covid-19 vaccine trial pause shows it's no 'rush job'

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Dr Chris Smith returns to discuss the latest Covid-19 science and research news. This week trials of one of the front-running vaccines (AZD1222 aka the "Oxford vaccine") made by AstraZeneca, have been halted. So what does this mean for the prospects of getting a safe and effective vaccine to market by early next year? And after 'Operation Warp Speed' aimed to develop a vaccine by January 2021, we now have UK Prime Minister Boris Johnson championing a mass testing program called 'Operation Moonshot' that could cost GBP100 billion! So are the objectives of these two space-themed projects incompatible? And what's his take on the 'bradykinin hypothesis', an emerging theory which seeks to explain the action of the disease? Dr Chris Smith is a consultant clinical virologist at Cambridge University, and one of BBC Radio 5 Live's Naked Scientists.

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