An animal model of covid-19 is now available

中共幾月前就有所謂動物模式--實驗用於新冠病毒。
問題是差幾個月對疫苗研究有大差別嗎？

Laboratory mice have been genetically engineered to be able to catch the virus

ECONOMIST.COM

An animal model of covid-19 is now available

Another is on its way