[viraptor]

> When I got vaccinated for various diseases, it gave long term immunity, not 4 doses over months to lessen the symptoms.

Please double check yours. There's a few common vaccines that people assume are "life long" but actually have a recommendation for boosters when you're an adult.

But yeah, in general the length of immunity differs, some vaccines work forever, some not. It's a limitation of what we can produce.

> So what was then the point of getting everyone vaccinated?

Multiple reasons. Prevent many deaths, lower symptoms, make recover easier, lower emergency departments load, lower transmission, etc. None of those were going to be perfect or work independently of people's behaviours.