Religious exemption valid?

[Spongebob]

I tend toward limiting religious exemptions to very specific things that are only clearly identified as an intrusion on their religious beliefs. I think religious pacifism is a good example, but only a few religions take this position. Also, only a few religions object to modern medical technology. JW is one and there's a long history on record for that. No mainstream Christian religion that I am aware of has ever objected to common medical practices like vaccination or blood transfusions or such with the single exception being abortion. So if you are any form of Christian you should be exempt from the exemption in my opinion. Has any Baptist or Assembly of God church objected to vaccinations in the past? Did they object to the polio vaccine? Small pox? Do they object to Viagra? How about drugs to treat Alzheimer's? Those drugs impact a person's mental disposition, which could affect their religious beliefs.