Virus was produced from plasmid-based DNA segments of a common Wuhan strain. The S-gene was site-specifically replaced with a cloned BA.5-based S-gene sequence.
Virus has been produced from plasmid-based DNA segments of a common Wuhan strain. The S-gene was site-specifically replaced with a cloned BA.2-based S-gene sequence.
Virus was produced from plasmid-based DNA segments of a common Wuhan strain. The S-gene was site-specifically replaced with a cloned BA.1-based S-gene sequence.