The world's first Covid-19 human challenge study will begin within a month in the UK, deliberately exposing up to 90 healthy young people to the coronavirus.
원문출처 : https://www.cnn.com/2021/02/17/health/covid-19-human-challenge-uk-intl/index.html
원문출처 : https://www.cnn.com/2021/02/17/health/covid-19-human-challenge-uk-intl/index.html