Tuesday 11 May 2021
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theepochtimes - 21 days ago

New UK ‘Challenge Trial’ Studies If People Can Catch Coronavirus Again

LONDON—British scientists on Monday launched a trial which will deliberately expose participants who have already had COVID-19 to the coronavirus again to examine immune responses and see how many get reinfected. In February, Britain became the first country in the world to give the go-ahead for so-called challenge trials in humans, in which volunteers are [ ]


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