A volunteer participates in the vaccine trial in Oxford, England on July 7. In research published on Monday in the journal Lancet, scientists said that they found their experimental Covid-19 vaccine produced a dual immune response in people aged 18 to 55. Photo: University of Oxford via AP

What happens next, as coronavirus vaccine trials move to a new phase?

  • Teams from China, Britain, the US and Germany have shown their potential products are safe but there’s still a long way to go
  • Broad testing across a diverse range – including elderly and less healthy subjects – is crucial to assessing how a vaccine might work on a population
Topic |   Coronavirus pandemic
A volunteer participates in the vaccine trial in Oxford, England on July 7. In research published on Monday in the journal Lancet, scientists said that they found their experimental Covid-19 vaccine produced a dual immune response in people aged 18 to 55. Photo: University of Oxford via AP
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