Moderna Warns of ‘Material Drop’ in Vaccine Efficacy Against Omicron

The Moderna CEO says existing COVID-19 vaccines will likely be less effective against the new Omicron variant.

Moderna Warns of ‘Material Drop’ in Vaccine Efficacy Against Omicron
photo of vaccine

The Moderna CEO says existing COVID-19 vaccines will likely be less effective against the new Omicron variant.