As for reduced effectiveness of the Pfizer vaccine, Beta and Gamma variants seem more concerning: https://aci.health.nsw.gov.au/covid-19/critical-intelligence-u

As for reduced effectiveness of the Pfizer vaccine, Beta and Gamma variants seem more concerning: https://aci.health.nsw.gov.au/covid-19/critical-intelligence-unit/sars-cov-2-variants https://aci.health.nsw.gov.au/covid-19/critical-intelligence...