Not to start anything
Oh no, but you did!
And it really is possible to have rational, good conversations about such things.
but I just like to say that the covid vaccine or any booster does not prevent you from contracting the disease, it merely lessens the severity of the symptoms.
Ideally, yes. Assuming it actually triggers an immune response that is useful to what is actual circulating at the time. But if you have strong protection, you won't know you were infected because the virus is unable to replicate to the point of making you sick. Or the symptoms are so small, they are just dismissed (like in my cases, constant allergies).
And, each time you get the disease, whether or not you have had any vaccinations, it will be a lesser impact to you.
Also assuming the immunity you gather is effective against later variants, yes. Sometimes it can be very relevant. Other times not so much.
You cannot vaccinate against a virus, it is misnamed.
Well, just depends on one's definition and perception of vaccination. Most people believe that a vaccination will protect from getting sick. And often it can. But it depends on a lot of factors. I am not a virologist but have picked up a lot of info. For example, the immune system has short term reaction (antibodies, which are produced and circulating) and long term memory (t-cells and such). The greatest protection is short-term, since antibodies will presumably be present and immediately attack the targeted virus when it is seen. But antibodies fade pretty quickly (months). Long-term memory (years) allows the immune system to remember and produce antibodies that are no longer present in the body, fairly fast, once the virus is identified again. Being sick with a virus or having an effective vaccination- either will illicit protection both now and in the future. That is, assuming your immune system is "normal".
The problem is that most viruses mutate. That can made the antibodies less effective or ineffective. And/or the t-cells unable to identify the mutated virus later. The issue with the first c19 vaccine is that although it was quite effective initially, c19 mutated pretty quickly, and the next incarnation rendered the vaccine much less useful. And the mutation after that left it pretty much completely ineffective. And it stayed that way. And the first update of the vaccine, when it finally came out, was too late- what it targeted was already passing, so it wasn't that effective. The third update (mid this year) is wait and see....
Personally, I got the first vaccine in early 2020 and the booster in late 2020. The late booster was already of little value, and I probably could have skipped it. I didn't bother with any other vaccinations. Why? Just personal choice and risk calculation- I never "got" C19 (even after it mutated a lot), the vaccines were proving not to be that effective anymore, the next one was bivalent and I don't really didn't want to challenge my immune system with something already not useful. This last one- well, C19 is so much weaker now, I just don't feel the need, especially since there is credible evidence of dangerous complications (although the risk is small, and perhaps less risky than C19 itself). But I did get an annual flu vaccine- have done that every year forever.
C19 was never really going to go away, but fade into the background. At this point, it is probably no more dangerous than what we see as the "seasonal flu." That doesn't make it any fun to have, nor not dangerous for some people (flus tend to be more dangerous for the young, C19 overwhelming for the old). Each person should make their own risk/reward assessment based on the best info they can find and/or at the advice of their own physician. Nothing is without risk. But people who repeatedly exposed themselves over and over and over and over again to the exact same vaccination, well, I don't think that was a good idea (and the prime reason I rejected the bivalent one), especially people like me with a pretty hyperactive immune system.
BTW, I'm going to look into the K2, that sounds interesting.
It shows promise, but not with anything to do regarding the immune system, mostly about heart/circulatory disease. And that is a major killer. As for D3, that is well-known to be very important for bone health and also immune system strength. The former is well understood. The latter, not so much.
