編集日時:2020年03月27日(金) 08:58:01履歴
How widespread different strains of a virus become depends on natural selection – the versions that can propagate quickest and replicate effectively in the body will be the most “successful”.
https://www.theguardian.com/world/2020/mar/26/can-...
https://www.theguardian.com/world/2020/mar/26/can-...