1. Ingredients- from a biochemical standpoint: Yikes!
2. The information we are given about vaccines and the diseases they are to prevent is often wrong. It troubles me that the medical community doesn't fully explore each vaccine and disease. For example: the drive to get all new parents vaccinated for pertussis EVEN THOUGH the studies on the pertussis vax clearly state that it does not give pertussis immunity, only lessens the severity of symptoms and that pertussis can still be transmitted to and from a vaccinated individual. -Or- "If you get polio, you'll be in an iron lung and/or die." Well, yes that may happen, but statistics don't make it that black and white. Plus the whole disease vs. vaccine thing isn't black and white either. It's not as easy as "get vaccinated and you'll be protected," but that's what the public is essentially told, and we are made to look like bad parents and bad members of society if we just weigh the options. Do this and you are instantly a "denier of science!" Since when is researching and coming to a conclusion "un-scientific?" It makes me wonder if the deceit is deliberate or not.
Honestly, I don't believe that government is deliberately lying, and I go back and forth on whether I think the pharma companies are. Mostly I think it's just the love affair our society has with vaccines that drives this. People are very attached to the idea that we were able to outsmart nature and protect ourselves from illness. I don't think people want to believe that a vaccine might actually cause harm. Since so many people can walk away from getting a shot with nothing but a sore arm, it's easy to say "most people are ok!" but our rise in chronic illnesses -often autoimmune diseases- make me wonder otherwise.
3. I'm not threatened by most of the diseases. My DS is currently unvaxed, but 2 or 3 illnesses concern me and I still weigh my options with those from time to time. But, for illnesses like measles, mumps, rubella, chicken pox, pertussis, hep b, etc. I don't feel immediately threatened. The threats may change, in that case I'm willing to re-explore my options. Again, just like vaccinating isn't black and white, neither is not-vaccinating...for me at least.
I don't believe in God, but I believe our bodies work to keep us alive and have many means of doing so. I trust this. I also understand that sometimes the body fails and you don't survive. Do I feel like vaccination stops this from happening? For some, yes.
I wish the medical community would use it's energy and resources to discover why person A survived but person B didn't from the same virus/bacteria. It troubles me that we have just been running with a "let's just make a vaccine and forget about it" approach instead of a "Hmmm. What's the reason for this complication?" approach. The latter seems more scientific if you ask me. 
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