Xu Zou
A group of recombinants are growing as fast as Nimbus NB.1.8.1. An interesting thing is that these recombinants,XFC,XFG,XFH,XFJ,XFM,XFN and XFP, all formed by an LF.7 NTD of S:T22N+S31P+K182R+R190S ,combined with RBD from different other variants.