First bivalent #COVID-19 booster vaccine approved by UK medicines regulator
▻https://www.gov.uk/government/news/first-bivalent-covid-19-booster-vaccine-approved-by-uk-medicines-regulator
In each dose of the booster vaccine, ‘Spikevax bivalent Original/Omicron’, half of the vaccine (25 micrograms) targets the original virus strain from 2020 and the other half (25 micrograms) targets Omicron.
The MHRA’s decision is based on data from a clinical trial which showed that a booster with the bivalent #Moderna vaccine triggers a strong immune response against both Omicron (BA.1) and the original 2020 strain. In an exploratory analysis the bivalent vaccine was also found to generate a good immune response against the Omicron sub-variants BA.4 and BA.5.