House M.D. Season 2 Episode 16

Melinda Bardach has been kept in a quarantine bubble at home by her over-protective parents since her heart-transplant months ago. After a kiss from her adolescent boyfriend Dan, she is brought in with a sudden series of symptoms varying from anaphylaxis, heart failure to paralysis. According possible syndromes must be eliminated, including her penicillin allergy as House cleverly guesses that Dan felt guilty he might contaminate her so took pills. However he wasn't sure which exactly, and that residue can be passed on through otherwise healthy semen, but again another theory is needed. Meanwhile House now is determined to keep poor divorcing Wilson in his home, mainly to torture the tidy gentleman.