More than 100 top scientists including 15 Nobel laureates have written an open letter calling for volunteers to be exposed to the coronavirus to assist with vaccine development.
source https://www.cnn.com/2020/07/16/health/vaccine-open-letter-challenge-trials-intl-gbr/index.html
source https://www.cnn.com/2020/07/16/health/vaccine-open-letter-challenge-trials-intl-gbr/index.html
Nobel laureates call for 'challenge trials' to speed up vaccine process
![Nobel laureates call for 'challenge trials' to speed up vaccine process]()
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