Pam: One of the simplest ways to cut down on the spread of germs is to use something called the vampire cough.
Erin: Di- Did you say vampire?
Pam: Oh, no, it's just that if a vampire had to cough, he would do it like this. [coughs into elbow]
Dwight K. Schrute: Uh-huh. Right. And ruin their cloaks? Do you have any idea how expensive wool is in Transylvania? [to camera] 'cause of the Euro.

Dwight K. Schrute: The principle is sound. To avoid illness, expose yourself to germs, enabling your immune system to develop antibodies. I don't know why everyone doesn't do this. Maybe they have something against living forever.

Pam: Well, other things you can do to help cut down on the spread of disease are to wash your hands regularly. Don't come in if you're sick. And get your flu shot. Also, I'm going to set up hand sanitizing stations around the office.
Dwight K. Schrute: No, no, no. They will cost you your life.
Jim: Elaborate.
Dwight K. Schrute: The worst thing you can do for your immune system is to coddle it. They need to fight their own battles. If Sabre really cared about our well-being, they would set up hand de-sanitizing stations. A simple bowl at every juncture filled with dirt, vomit, fecal matter...
Pam: I'm not- I'm not going to do that. I'm not going to do that.
Dwight K. Schrute: Exposing yourself to germs is the best way to make yourself stronger.
Jim: So by that rationale, if I had to sneeze, I should just sneeze on you.
Dwight K. Schrute: Yes. I would welcome it.
Jim: [sneezes on Dwight, looks at camera] You're welcome.