Supernatural creator, Eric Kripke, has officially spoken about recent fan reaction to Jensen Ackles' character, Dean, and the recent Yellow Fever episode. Take a look...

"So I've never before responded directly to the fandom's comments about an episode, and I don't plan to make a habit of it, but I couldn't resist dropping in a thought about the episode "Yellow Fever".

Which is this:

Dean is not a dick.

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None of the writers, or anyone on the creative team of Supernatural, think Dean's ever been a dick, past, present, or future. He's a hero. Dean did NOT contract the ghost sickness because he's a dick. Victims contract the illness because they use "fear as a weapon." Dean asks Lilith at the episode's end, "why did I get infected?" And she cryptically responds, "you know why. Listen to your heart." We, as the writers, probably should have emphasized this mystery more, I take responsibility for that omission. But the point is: the reason he was infected is because of a SECRET he's keeping. A dark secret that will be revealed in Episode 10. And not at all because of any dickishness, implied or otherwise.

Thanks, gang."

Brian B.