Why we probably won't get new covid-19 vaccines in 2023

Any new covid-19 vaccine must be better than the ones we already have, setting a high bar for approval that is not expected to be met in 2023

Why we probably won't get new covid-19 vaccines in 2023
Any new covid-19 vaccine must be better than the ones we already have, setting a high bar for approval that is not expected to be met in 2023