The campus shown before Olivia talks to the student is Boston University, not Boston College
Trivia: The glyph cipher spells "saved."
Dr. Bishop claims that the large single-cell organism is an enlarged version of the virus for the common cold. But all viri are per definition not cells.
Trivia: In the shot of Olivia reading Ella a book at the end, the title is "What's That Noise?" This is a clue toward the next episode, "The No-Brainer."
As Olivia approaches the window to look into the Loeb house, the blinds are open but down. As the shot cuts to inside the house looking out at Olivia, the blinds are up.
Trivia: The Observer can be seen as the HARVARD UNIVERSITY 3-d title appears, walking across the screen as Olivia emerges from her car.
Walter: (as he examines the overgrown cold virus) Spirited, isn't it?
Peter: Well, have you considered, oh, I don't know, killing it?
Walter: We can always kill it, son. We can't always bring it back.
Astrid: You... probably could.
Walter: That is... true.
Peter: (to Olivia) You're talking about a man who infects people with giant viruses. If you hadn't escaped, who knows what they would have done to you. Listen to me, you just told him that you killed his wife. He said that to you to try to get a reaction out of you. To get to you. Let it go. You got his confession. Go home.
Walter: I was worried too. When you were taken.
Olivia: Thank you, Walter.
Walter: (looking at Peter) Not as much as him, of course.
Charlie: Olivia may have a lead on who abducted her. Only she can't pursue it without some help. I can't help her.
Peter: Why not?
Charlie: Suffice it to say, that sometimes the problem with being in law-enforcement is that you got to obey the law yourself.
Peter: And you think I'm the guy to break the law for you.
Charlie: I'm sorry, I didn't...
Peter: No, look, you're right. I am the guy to break the law for you.
Peter: Is that LSD?
Walter: LSD? Why would I...? It's a decongestant. She is a giant cold virus, after all.
Rachel: Hard day?
Olivia: I honestly wouldn't know what to tell you. And if I did, it would be a felony.
Rachel: You have a crazy job.
Peter: Walter, what are you doing?
Walter: I'm dosing a caterpillar.
Peter: Dosing? As in LSD?
Walter: It's a special blend.
Peter: I see. Hey, guess what just happened? Finding out that my father gives drugs to bugs, somehow just became a typical moment in my life.
Walter: Wonderful, isn't it?
Olivia: And bring your father. I think we'll need him.
Peter: Do I have to?
Olivia: Why would they do that? I mean, what would they want with me? What were they doing? Who could they be?
Walter: You're like a question machine.
Walter: Internal hemorrhaging, rapid cell deterioration. It appears that he suffocated from within.
Peter: Well, maybe that's because a giant, slimy, spiky slug came out of his mouth.
Walter: Yes. And I have a theory as to what it might have been.
Peter: I'm sure you do. Care to share?
Walter: At least he died teaching, a righteous profession.
Walter: Look. Simian hemorrhagic fever. The infected cells have a definitive spiderweb look. Makes HIV look like a common cold by comparison.
Walter: (enthusiastically) Ebola. First the headaches and then the skin turns to rice pudding.
Peter: Walter, please!
Walter: Do you know what I could go for?
Astrid: Don't say food.
Walter: A cheese steak.
Astrid: Uggh. How can he even think about eating?
Peter: I know, it's disgusting, right? And yet…
Astrid: Ha. You want one too?
Peter: Extra provolone, please.
Astrid: Like father, like son.
Peter: Oh, come on, don't say that.
Peter: Are you sure?
Walter: My boy, I'm not even sure that we exist on the same plane of consciousness, but yes, I believe so.
Olivia: Can I come in?
Broyles: I hate that. Knocking and asking while you come in.
Peter: They supersized the common cold, which as it turns out, is disgusting.
Olivia: Obviously somebody's playing with us.
Peter: Yeah, they're showing off. Killing epidemiologists with the common cold.
Walter: (as Olivia leaves) She is beautiful, isn't she?
Walter: The slug.
Peter: The man's insane, Olivia.
Walter: I concur, and in the category of takes one to know one… that man did seem disturbed.
(Walter puts trash can over a parasite)
Walter: Things like this used to happen in the lab all the time. Makes me nostalgic.
Original International Air Dates:
Norway: March 15, 2009 on TVN
Finland: March 16, 2009 on MTV3
United Kingdom: March 22, 2009 on Sky1/Sky1 HD
Germany: June 1, 2009 on ProSieben
Sweden: June 11, 2009 on Kanal 5
Belgium: July 2, 2009 on RTBF2
France: July 15, 2009 on TF1
Australia: October 21, 2009 on GO!
The Netherlands: November 15, 2009 on Net5
Poland: November 20, 2009 on TVN
Slovakia: December 13, 2009 on Markiza
Czech Republic: March 12, 2010 on Nova Cinema
Music: Just Like Heaven (Cure cover by The Watson Twins)
The opening title did not appear until 15 minutes into the show.
Blair Brown and Mark Valley are credited but don't appear.