@MarvinH2_G2 @FinchTH Yes that's what I thought. Human studies on BA.1 which took more than two month, then the update BA.1->BA.5
BTW, how does the BA.4/BA.5 work? Is this some specially engineered sequence or is it just BA.5 but deemed to work on BA.4?
@MarvinH2_G2 @FinchTH 是的，我就是这么想的。 BA.1 的人体研究花了两个多月，然后更新 BA.1-