Therefore , the word `` vaccination '' -- first used by PERSON@1 -LRB- an MISC@1 physician -RRB- in NUMBER@1 -- PERSON@2 Library , ORGANIZATION@1 : `` PERSON@1 and the MISC@2 '' , exhibition , NUMBER@2 has the Latin root vacca meaning cow , or from Latin root vaccinia meaning cowpox .

Therefore the word `` vaccination '' has the Latin root vaca meaning cow .
