Moderna and rival Pfizer on Wednesday (Sep 6) said their updated COVID-19 vaccines generated strong responses in testing against the highly mutated BA.2.86 subvariant of the coronavirus that has rai
that has raised fears of a resurgence of infections.
Pfizer said its updated vaccine with partner BioNTech elicited a strong antibody response against BA.2.86 in a preclinical study in mice. TD Cowen analyst Tyler Van Buren said Wednesday's news was unlikely to raise the share price because people already assume the mRNA vaccines will continue to be effective against new COVID-19 variants as they crop up. Both the Moderna and Pfizer/BioNTech shots are based on mRNA technology.
Last month, Moderna and Pfizer each said their new vaccines appeared to be effective against another new subvariant of concern dubbed EG.5 in initial testing.
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