because not all immunizations last forever
gamma globulin
nope
rabies ,nope.
hep a,b
nope and measles ,mumps and rubolas and tetanus ,nope
yellow fever ,nope
those are all boosters I got often .
Camparing apples to onions doesn’t help the discussion.
Those vaccines have been around for a long time.
The Comirnaty Vaccine is the only one approved by the FDA and that has only been a few months.
We still don’t know all there is to know about mid term and long term fatal side effects.
Many countries have stopped issuing the vaccine for certain age groups because if the severe and fatal side effects.
There are so many other medicines that can work and have worked to treat the COVID 19, Wuhan Virus, effectively.
JLB