Quick definitions from WordNet (infect)
▸ verb: contaminate with ideas or an ideology ("Society was infected by racism")
▸ verb: affect in a contagious way ("His laughter infects everyone who is in the same room")
▸ verb: contaminate with a disease or microorganism
▸ verb: communicate a disease to ("Your children have infected you with this head cold")
▸ Also see infect
▸ verb: contaminate with ideas or an ideology ("Society was infected by racism")
▸ verb: affect in a contagious way ("His laughter infects everyone who is in the same room")
▸ verb: contaminate with a disease or microorganism
▸ verb: communicate a disease to ("Your children have infected you with this head cold")
▸ Also see infect