2024 means boosters for at least 2022, 2023, 2024. If covid becomes like the flu that requires a new shot every year then 3x (exceeding the population by 2x) is

2024 means boosters for at least 2022, 2023, 2024. If covid becomes like the flu that requires a new shot every year then 3x (exceeding the population by 2x) is pretty much the exact number of shots you'd expect.