Spain's large-scale study on the coronavirus indicates just 5% of its population has developed antibodies, strengthening evidence that a so-called herd immunity to Covid-19 is "unachievable," the medical journal the Lancet reported.
원문출처 : https://www.cnn.com/videos/world/2020/07/06/spain-coronavirus-covid-19-herd-immunity-study-goodman-intl-ldn-vpx.cnn
원문출처 : https://www.cnn.com/videos/world/2020/07/06/spain-coronavirus-covid-19-herd-immunity-study-goodman-intl-ldn-vpx.cnn