TBH, I only recently learned that they do, when I started looking into the ingredients in some of the vaccines. Obviously it doesn't say in the Bible to or not vaccinate, so my decision is based on my own research, both into the Bible and into scientific matters.
Having said that, I was already uncomfortable with the idea of vaccinations as per the government schedule BEFORE I learned about some of the ingredients, such as animal placenta, some being cultured in animal blood etc - finding that out was pretty much the clincher. Again, this is a conscience matter for those following my beliefs - my parents got myself and all my sisters fully vaccinated, as was their right.
For myself, this also means that I will not accept certain anti-venoms and the tetanus shot. This is because they are cultured in animal blood, and therefore, given the Bible's stance on blood, I feel they are unacceptable for me.
No offence taken Winter, definitely a relevant question, and one I am happy to answer :)

