Akademik

infest
To occupy a site and dwell ectoparasitically on external surface tissue, as opposed to internally (infect). [L. infesto, pp. -atus, to attack]

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inĀ·fest in-'fest vt to live in or on as a parasite <the flea that \infests cats> <horses \infested with worms> compare INFECT

Medical dictionary. 2011.