Human trials of British coronavirus vaccine to reach 10,000

Institutions across Britain had begun enrolling up to 10,260 adults and children to see how well the human immune system responds to the vaccine and how safe it is, the university said. Researchers are mainly looking for healthcare staff and other public-facing workers to join the trial as in order to get a clear signal on the vaccine's efficacy, they need a minimum number to catch the coronavirus in their everyday lives. An initial trial that started on April 23 has already seen more than 1,000 volunteers aged 18-55 receive the injection and Oxford said phases II and III will add people aged 56 and older as well as children of 5 to 12 years.

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