11 Jan 2022 2:29 pm
According to your own link, Its actually 42%New Study: Pfizer Vaccine 42% Effective Against COVID-19, Rise in Delta Variantfreeman » 11 Jan 2022, 2:51 pm » wrote: ↑ I see. So you don't count a vaxx sinking from 88% to 3% effective as being a fail.
Or such poor performance against the first variant that came along to challenge them.
Pfizer-BioNTech effectiveness down to 42% Moderna down to 76%