bivalent covid vaccine – Dr. Barry Dworkin

Bivalent COVID vaccine now available to all Ontarians over 18 years of age. Why do we have the bivalent BA.1 version whilst the US has the BA.4 and 5?

September 26, 2022

Medical Mythbusting Commentary for September 26, 2022 Source:Bivalent COVID-19 booster shot available to all adults in Ontario starting Monday

Bivalent COVID vaccine now available to all Ontarians over 18 years of age. Why do we have the bivalent BA.1 version whilst the US has the BA.4 and 5?