▁early ▁philosoph ies ▁that ▁sh aped ▁the ▁foundation ▁of ▁these ▁groups . ▁ ▁Chi rop ract ic ▁Histor ically , ▁chi rop ract ic ▁strongly ▁opposed ▁v acc ination ▁based ▁on ▁its ▁belief ▁that ▁all ▁dise ases ▁were ▁trace able ▁to ▁causes ▁in ▁the ▁sp ine ▁and ▁therefore ▁could ▁not ▁be ▁affected ▁by ▁v acc ines . ▁Daniel ▁D . ▁Pal mer ▁( 1 8 4 5 – 1 9 1 3 ), ▁the ▁founder ▁of ▁chi rop ract ic , ▁wrote : ▁" It ▁is ▁the ▁very ▁height ▁of ▁abs urd ity ▁to ▁st rive ▁to ▁' prote ct ' ▁any ▁person ▁from ▁small po x ▁or ▁any ▁other ▁mal ady ▁by ▁in oc ulating ▁them ▁with ▁a ▁fil thy ▁animal ▁poison ." ▁V acc ination ▁remains ▁controvers ial ▁within ▁the ▁profession . ▁Most ▁chi rop ract ic ▁writ ings ▁on ▁v acc ination ▁focus ▁on ▁its ▁negative ▁aspects . ▁A ▁ 1 9 9 5 ▁survey ▁of ▁US ▁chi rop ract ors ▁found ▁that ▁about ▁one ▁third ▁believed ▁there ▁was ▁no ▁scientific ▁proof ▁that ▁imm un ization ▁prevents ▁disease . ▁While ▁the ▁Canadian ▁Chi rop ract ic ▁Association ▁supports ▁v acc ination , ▁a ▁survey ▁in ▁Al berta ▁in ▁ 2 0 0 2 ▁found ▁that ▁ 2 5 % ▁of ▁chi rop ract ors ▁ad vised ▁patients ▁for , ▁and ▁ 2 7 % ▁ad vised ▁against , ▁v acc in ations ▁for ▁patients ▁or ▁for ▁their ▁children . ▁ ▁Although ▁most ▁chi rop ract ic ▁colleg es ▁try ▁to