[Alter Kaker]

Damn. I already got corralled into my first Pfizer shot. Oh, well.

All of the vaccines are extremely effective - including Pfizer. The differences are minor. If the variants continue to evolve and proliferate you may eventually need a booster of some kind, but we'll cross that bridge if we come to it.

[TTFX]

Some of the vaccines currently available are more effective against the variants.