No, different reason, booster shots, are needed to "remind" your immune system that the virus is still out there, and keep it on fighting shape, and as far as I

No, different reason, booster shots, are needed to "remind" your immune system that the virus is still out there, and keep it on fighting shape, and as far as I am aware, the early discussions for booster shots, were about 6, to 9 months. But all of that is up in the air, there's no data for how the vaccine will develop that much into the future yet Anyhow, if the spike proteins vary too much, then we'll need a new vaccine all together, not just a booster for the current one