Tainted imp. & p. p. : of Taint

Example:
What Maple Leaf Food products were originally Tainted with listeria?

Taxonomy
taint, Middle English, Merriam-Webster Online Dictionary, Dictionary, webster, Word Games, Webster Online Dictionary with audio pronunciations, putrefaction, glossary, language, ESL, Search, Etymology, attaint, Anglo-French, teint, past participle, teindre.

Defination from the web:
taint from the Merriam-Webster Online Dictionary with audio pronunciations, thesaurus, Word of the Day, and word games. ... 3 : to touch or affect slightly with something bad <persons tainted with prejudice>intransitive verb 1 obsolete : to become weak ...