Having been so disappointed so many times in the knowledge of doctors, the efficacy of prescribed medicines, and the protocols of medical institutions, the one thing I do know about humans is that we know a lot less about health in so many situations than we think we do.
I think vaccines are just something for which we do not fully understand the complete effects on health. I am not skeptical of their efficacy, which I observe is mixed but real. If they can cause major damage occasionally, it's easy for me to see that it's likely there are cases of less extreme damage and if they do not present when or how we expect them we do not see them as provably connected. This is likely to have a graphable curve if we ever are able to collect the data. I think there are flaws in our ability to connect cause and effect.
There is a lot we don't know about vaccines, and a lot of exaggeration on both sides of the debate. There are also real risks on both sides yet insufficient information to understand those risks fully along with institutions with a strong interest in influencing the public in one direction only. I think either decision a parent ultimately makes is understandable. We have a blind spot about vaccines and in that blind spot there may be a great deal of risk or minor risks but it really is a "shot in the dark" for us all. Some parents do not find the blind spot to be of significant concern but others have enough piecemeal information to understand a high risk potential in the areas of weak knowledge. I fully respect others' decisions knowing that all of us are working with partial information and that some of the sources on both sides have less credibility than others.
If a general distrust of the medical establishment or other institutions influences you, that is certainly understandable. My own experiences have made me very distrustful, and I know that creates a bias, nevertheless my bias is based on real things and my skepticism legitimate.
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