"Avoid serum inoculations and vaccinations as they pollute the blood stream with their filthy pus." (The Golden Age, November 13, 1929, pp. 106-107)
"Quite likely there is some connection between the violation of human blood [vaccines] and the spread of demonism..." (The Golden Age, Feb 4, 1931 p. 293)
Jehovah's Witnesses have changed their mind and now allow vaccinations.