She has 'infected' everyone 'with' her enthusiasm. [=her enthusiasm has made other people feel enthusiastic too]
All the computers in the office were 'infected' by/with the same virus.
The virus has 'infected' many computers.
(..) Words escape even the most cunning tongue... ...my little whore queen. What queen-like behavior. Remove her from this chamber before she infects us further... ...with her inglorious and shabby self. This will not be over quickly. You will not enjoy this. I am not your queen. Traitor. (..)2006 300