Liagala t1_iwgithc wrote

> Since it's looking like the last mRNA vaccine needs to be updated yearly, I'm guessing this one will be too?

The last one needs to be updated yearly because the virus it fights against is constantly changing, and we need to address the new versions of it. As far as I know, rabies doesn't change a whole lot, so updates would need to be far less frequent. Possibly something more like Tetanus shots, where once a decade or so just to remind your body of what it is, would be plenty.

Note that everything beyond my first sentence is guessing and conjecture, and I don't do anything medically-related for a living.