Extended Data Fig. 7: Comparison of syncytia formation by clinical isolates and reverse-genetics live virus.
From: SARS-CoV-2 Omicron is an immune escape variant with an altered cell entry pathway
GFP-10 and GFP-11 A549 ACE2 TMPRSS2 cells were co-cultured and infected with Delta and Omicron BA.1 clinical isolates or with live reverse-genetics virus in which the Delta or Omicron BA.1 spike is presented in the context of the ancestral wildtype B lineage genome. Fusion was quantified by measuring GFP signal, as in Fig. 5.
