Losing sleep over Ebola? Blame “The Walking Dead.”
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Scholars say the outpouring of public angst about the virus is partly rooted in Hollywood, where film studios have for years cranked out TV shows and movies such as “Outbreak” and “Contagion” that show the world ravaged by an unstoppable virus.

The silver screen portrayals have added to the challenges for public health officials as they try to maintain public calm about a virus that is killing an estimated 7 out of every 10 people it infects in West Africa.

“They’re fictional. They’re meant to entertain,” said Nancy Tomes, a historian who has studied the causes of “germ panics.”