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Analysis: Lack of antidotes adds to ethical dilemmas for UK COVID-19 challenge trials https://t.co/J02a9RH3QF pic.twitter.com/TrkbwDdfaG
— Reuters (@Reuters) October 21, 2020
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U.K. plans "challenge trials," which will intentionally give people COVID-19 to test vaccineshttps://t.co/fxkqemFkAf
— TIME (@TIME) October 21, 2020
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The volunteers lining up for Covid-19 challenge trials https://t.co/ixMFoTP2sK
— Guardian Australia (@GuardianAus) October 20, 2020
weehingthong 